. Put the verbs in brackets into the Present Perfect. 1.They ….(not move) … to a new house yet.

2. The plane…. already …(arrive).

3. … Azamat… for work? (leave)

4. Don’t come in here! I… just… (clean) the floor.

5. The author… …. (write) a lot of best-selling novels.
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1. They have not moved to a new house yet.

Explanation: The verb "move" is in the past participle form, which is "moved." To form the Present Perfect tense, we use the auxiliary verb "have" in the present tense followed by the past participle of the main verb. Since the action of moving to a new house has not happened yet, we use "have not moved" in the negative form.

2. The plane has already arrived.

Explanation: The verb "arrive" is in the past participle form, which is "arrived." The Present Perfect tense is formed by using the auxiliary verb "have" in the present tense followed by the past participle of the main verb. In this sentence, the action of the plane arriving has already happened, so we use "has already arrived."

3. Has Azamat left for work?

Explanation: The verb "leave" is in the base form, which remains the same in the Present Perfect tense. To form the Present Perfect tense in a question, we use the auxiliary verb "have" in the present tense followed by the subject "Azamat" and the base form of the main verb "leave." The word order in questions is usually subject-auxiliary-verb.

4. Don't come in here! I have just cleaned the floor.

Explanation: The verb "clean" is in the past participle form, which is "cleaned." To form the Present Perfect tense in the negative form, we use the auxiliary verb "have" in the present tense followed by "not" and the past participle of the main verb. In this sentence, the action of cleaning the floor has just happened, so we use "have just cleaned."

5. The author has written a lot of best-selling novels.

Explanation: The verb "write" is in the past participle form, which is "written." The Present Perfect tense is formed by using the auxiliary verb "have" in the present tense followed by the past participle of the main verb. In this sentence, the author has completed the action of writing a lot of best-selling novels in the past, so we use "has written."