English Grammar and Usage

For questions about actions that happened at an unspecified time before now with relevance to the present, we use present perfect (Have you finished). 'Did you finish' is simple past, used for specific past times. 'Had you finished' is past perfect, used for earlier past.

To solve this question, the user needs to know the different verb tenses and their uses. This sentence is in the future perfect tense, which is used to show that an action will have been completed before a specific point in the future.

Now, let's go through each option and explain why it is right or wrong:

A. finish: This option is incorrect because "finish" is in the simple present tense, which is not appropriate for this sentence. The sentence is in the future perfect tense, indicating that the action will be completed in the future.

B. will have finished: This option is correct. "Will have finished" is in the future perfect tense, which is appropriate for this sentence. It shows that the action of finishing homework will be completed before the time the person arrives.

C. will finish: This option is incorrect because "will finish" is in the simple future tense, which does not convey the sense of completion required by the sentence.

D. were finished: This option is incorrect because "were finished" is in the past tense, which is not appropriate for this sentence. The sentence is in the future perfect tense, indicating that the action will be completed in the future.

Therefore, the answer is: B. will have finished

The correct spelling is 'committee' with double 'm', double 't', and double 'e'. Options A and B each miss one double letter, while D drops the final 'e'. The pattern is consistent: m-m-t-t-e-e in that order.

'Turn on' is the correct phrasal verb for switching on an electronic device like a radio. 'Tune in' means to adjust a radio to receive a specific station, but you must first turn it on. 'Turn up' means to increase volume. 'Tune at' is not a valid phrasal verb.

'Auf Wiedersehen' is the standard German phrase for 'see you again' or 'goodbye' (literally 'until we see each other again'). The other options are misspelled or incorrect - 'aufwiederkönnen' and 'aufwiedertreffen' are not real German words, and 'aufwiederhören' means 'until we hear again' (used on phone).

'Lie to someone' is the correct phrase meaning to deliberately say something untrue to them. 'Lie with' is incorrect (that would mean 'sleep with'). 'Lie on' has a different meaning entirely.

The correct answer is False. 'They walk a 1000 miles daily' uses the simple present tense (walk), not present perfect. Present perfect would use 'have/has + past participle' like 'They have walked'. The statement is correctly labeled as False.

The correct answer is False. 'They had walked' is past perfect tense (had + past participle), not present perfect. Present perfect would be 'They have walked'. The statement correctly identifies this as False.

The correct answer is True. 'Betty has taught for ten years' is present perfect tense (has + past participle 'taught'), indicating an action continuing from past to present. This is correctly identified.

Present Perfect tense uses 'has/have' + past participle to show an action completed in the past with present relevance. 'Has saved' matches this structure exactly (has + saved), indicating the saving is complete and the result exists now.

Option D is correct because 'despite' is never followed by 'of' - it stands alone. Options A, B, and C are grammatically incorrect: 'Despite of' (A) should be just 'despite'; 'inspite of' (B) should be 'in spite of' (two words); 'in spite my being' (C) should be 'in spite of my being'. The rule is: use 'despite' alone or 'in spite of' (three words with 'of').

Option 501658 is a clear, concise sentence with proper introductory phrase structure. Option 501657 is clunky due to the placement of the participial phrase, and 501659 is grammatically incorrect because 'after technically reviewed' lacks the necessary auxiliary verb or proper gerund form.

'I am playing' uses the present continuous tense correctly with the verb 'to be' (am) followed by the present participle (playing). This form describes an action happening right now. Option A is incorrect because 'played' is past tense and doesn't work with 'am'. Option C incorrectly uses 'will' with past tense 'played'. Option D incorrectly uses 'has' with 'playing' instead of 'am'.