English Grammar and Usage

This sentence is in the present perfect tense. The pronoun is third person singular, so 'has' is the correct choice.

The sentence belongs to the simple past tense. This is indicated by the word'yesterday'. It denotes an action in the past, so second form of verb is used here.

The tense of the sentence is present continous tense. It shows that the action is going on. Also the subject is singular and of third person. So the correct option is'is doing'.

The tense of this sentence is present perfect continuous tense. It shows that the action that began in the past is still going-on. The pronoun in the sentence is that of the third person singular. So the option 'has been working' is correct.

The sentence is that of the past indefinite tense. It refers to an action in the past. Here second form of the verb is to be used. So 'did' is the correct option.

The sentence states that they have completed living there for 10 years and are still living. So present perfect continuous is to be used. The word 'since' indicates the completeness of the action, so present continuous form 'are living' cannot be used.

The sentence belongs to the past continous tense. It refers to an action which was going on in the past. The subject of the sentence is third person pronoun. So 'was coming' is the correct option.

The sentence belongs to the simple present tense. Here the pronoun is that of first person singular so first form of verb, without 's' or 'es' is to be used.

The sentence belongs to the present indefinite tense. It speaks of the appearance of the magazine on a regular basis. The pronoun is third person singular, so the verb 'appear'will take 's' after it.

This sentence is of the present perfect continous tense. It indicates an action which began in the past and is still going. The pronoun is third person singular. The correct choice, therefore, is 'has been crying'.

The sentence belongs to the present indefinite tense. The noun is singular so the verb' want ' will take 's' after it.

This; that; these; those; such; none and neither are demonstrative pronouns.

The given sentence relates to the present progressive tense.

We must use 'did not' while talking about past tense.

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