Put the verb into the correct form (Past Simple or Present
Perfect).
11. You are late for the

classes again. You . . . (to be) already late once this week. 12. Jill . . . (not to write)

to me for nearly a month. 13. It . . . (to be) cold in winter in Moscow as a rule? - Yes,

generally it . . . (to be), but this winter it . . . (to be) very warm. 14. Where is Peter? -

He . . . (to go) to the library. 15. You . . . (to read) anything by Mark Twain? Which

of his novels you . . . (to read) when a child? 16. I . . . (to be) recently to this picture

gallery. There . . . (to be) a very interesting exhibition on. 17. Tom . . . (to lose) his

key and can’t open the door. He . . . (to lose) his key yesterday. 18. I ( to phone) him

an hour ago, but he (to be) at home . 19. You (to meet) Peter yet, but I am sure you

will like him. 20. I (to start) learning English at school and then (to go on) studying it

at the Institute.