1). Peter and
Ann (went) away five minutes ago. 2.) I (have written) the letter but i (have not
sent) it. 3.) He has just (gone) away. 4.) She has already (answered) the letter.
5.) She (answered) it on Tuesday. 6.) I have just (told) you the answer. 7.) I
(read) that book in my summer holidays. 8.) I (have not seen) him for three
years. I (will be) glad to see him again some time. 9.) What are you (doing)?- I
(am copying) the text from the text-book now. 10.) Is he (going) to Moscow next
week? 11). He (has not smoked) for a month. He is trying to give it up. 12).
When did he (arrive)?- He (arrived) at 2.00. 13.) Did you (switch off) the light
before you left the house? 14.) I (read) these books when i was at
school. 15). I can’t go out because I (have not finished) my work. 16). I
already (told) you the answer yesterday. 17). What are you (doing) tomorrow in
the morning? 18). I (did not meet) him last week. 19). I usually (leave)
home at seven and (get) here at twelve. 20). Here is your watch. I have just
(found) it. 21). Have you (not had) your breakfast yet?