Выберет past simple или present perfect, и запишите в выбранном времени: 1) i don't know where my brother is. you (see) him? 2) "where is you key? " "i don't know. i (lose) it." 3) ann is on holiday. she (go) to france. 4) when the last train (leave)? 5) the weather (be) good when you (be) on holiday? 6) we (not see) each other for a long time. 7) what you (do) at the weekend? 8) john is hungry. he (not eat) anything since breakfast? 9) she (not go) to the library three days ago. 10) how long you (know) bill? 11) olga always (want) to visit great britain. 12) mark twain (live) in the state of missouri.

1) I don't know where my brother is. Have you seen him?
2) "Where is you key?" "I don't know. I have lost it."
3) Ann is on holiday. She has gone to France.
4) When did the last train leave?
5) Was the weather good when you were on holiday?
6) We haven't seen each other for a long time. 
7) What did you do at the weekend?
8) John is hungry. Hasn't he eaten anything since breakfast?
9) She didn't go to the library three days ago. 
10) How long have you known Bill?
11) Olga has always wanted to visit Great Britain. 
12) Mark Twain lived in the state of Missouri.