Sentence Completion (Tenses)

'Have not worked' is correct because the sentence requires the present perfect tense to connect past action to present consequences. The structure 'will be angry with you because you ______ properly' indicates an existing condition causing future anger. Present perfect ('have not worked') shows the incomplete action up to now. Simple past ('not worked') lacks the connection to present, and 'was not worked' is passive voice, grammatically incorrect here.

The simple present tense 'keeps' is used for habitual or repeated actions. The phrase 'these days' indicates a current ongoing habit, so 'keeps' (simple present) correctly shows this repeated action. 'Is keeping' would suggest a temporary current action, while 'keep' is grammatically incorrect with the singular subject 'Raman'.

The past continuous tense 'was reading' is required because it describes an action that was in progress when another past event occurred (wife came). Past continuous (was/were + verb-ing) shows simultaneous actions in the past. 'Read' is simple past, 'is reading' is present continuous, and 'has been reading' is present perfect continuous.

The past continuous tense 'was standing' is correct because it describes an action that was happening simultaneously with another past action ('did not see'). The Principal was standing behind him at that moment in the past. 'Stand' is present tense, 'stands' is simple present, and 'is standing' is present continuous.

The present continuous tense 'is speaking' is correct because the phrase 'at this time' indicates the action is happening right now. Present continuous (am/is/are + verb-ing) describes current temporary actions. 'Speak' is simple present, 'spoke' is simple past, and 'spoken' is a past participle that cannot stand alone as the main verb.

The simple past tense 'bought' is correct because 'last month' indicates a completed action in the past. Simple past is used for finished actions with specific past time markers. 'Buy' is present tense, 'was buying' is past continuous (incomplete action), and 'is buying' is present continuous.

The simple future tense 'will be' is correct for predicting a certain future event. The conditional 'would be' is used for hypothetical situations, 'shall be' is formal first-person future, and 'be' is grammatically incorrect without an auxiliary verb.

The past perfect tense 'had gone' is correct because the action (children going for a picnic) happened before the past reporting verb 'said'. Past perfect (had + past participle) shows the earlier of two past events. 'Has gone' and 'have gone' are present perfect tenses.

The future continuous tense 'will be living' is correct because 'at this time of next month' indicates an action that will be in progress at a specific future time. Future continuous (will be + verb-ing) describes ongoing future actions. 'Live' is simple present, and 'will living' is grammatically incorrect.

The past perfect tense 'had won' is correct because the winning happened before the past reporting verb 'said'. Past perfect shows the earlier of two past actions. 'Won' is simple past, 'have won' is present perfect, and 'win' is present tense.

The simple future tense 'will stay' is correct for expressing a planned future action or intention. 'Will be stay' is grammatically incorrect, 'would stay' is conditional (not appropriate here), and 'shall stay' is more formal and typically first-person.

The future perfect tense 'will have finished' is correct because it describes an action that will be completed before a specific future time ('by the time you come back'). Future perfect (will have + past participle) shows actions completed before future reference points. 'Has finished' is present perfect and 'finished' is simple past.

The future perfect tense 'will have discussed' is correct because 'by next Sunday' indicates the action will be completed before a specific future time. Future perfect (will have + past participle) is used for actions finished by future deadlines. 'Discuss' is simple present, 'will discuss' is simple future, and 'will be discussing' is future continuous.

The sentence requires a verb in future tense since it describes an action the manager will perform. 'Will talk' (simple future) is the correct choice to indicate a future action. Option B 'will be talking' suggests an ongoing action rather than a single event.

Since 'will' has been used, the verb succeeding it will in simple present tense. Hence, 'take' is the correct answer.

'Usually' is an adverb of frequency and is followed by a verb in the present tense form. Hence, 'plays' is the correct answer.

The phrase 'since morning' indicates an action that began in the past and continues to the present. Present perfect continuous 'has been digging' correctly shows this ongoing duration. Simple past or present tenses don't capture the continuation aspect.

'He' is a third person singular. Hence, 'has' is used with the third person singular.

The time marker 'three years ago' indicates a completed past action, requiring simple past tense. 'Bought' is the past tense of 'buy'. Option A is present tense, B is past continuous, and D uses 'brought' (past of 'bring') instead of 'bought'.

'Will have finished' fits best in the given sentence.

'Last Monday' is a specific past time reference, requiring simple past tense. 'Stayed' correctly describes the completed action. Present tense 'stay' and present continuous 'is staying' don't match the past timeframe.

The sentence uses past perfect 'had broken' for the first action, so the second action must be in simple past to show sequence. 'Brought' is correct as it happened after the lock-breaking. The past perfect establishes that Mohan broke the lock before I arrived with the key.

'Since last week' indicates an action beginning in the past and continuing to now. Present perfect continuous 'has been trying' captures this ongoing effort. Past perfect 'had been trying' would require a reference point in the past.

When two actions happen in the past in succession, the first action takes up past perfect form of the verb while the second takes up simple past form of the verb.

To 'examine' means to inspect (someone or something) thoroughly in order to determine their nature or condition.