1 Complete the sentences with the verbs in the boxes. can't have rained could solve could have solved may rain

1 There are some dark clouds in the sky. It

later.

2 Adam's good with computers. He

your problem - just ask him.

3 The rivers and lakes are almost dry in this region. It for a long time.

4 I don't know how she managed it. I guess she

the problem by accident.​

1  how does she usually get to school? 2. when we came, the dinner was still being cooked. 3. i was very tired because i had been running for an hour. 4.   has jane ever heard this story? 5. when summer comes, we'll go to the seaside. 6. please, wait! your question   is being discussing now. 7. she will have painted the door by the time we come back? 8. the book   will be published next month. 9. how long   have  you had this book? 10. the cooking is usually done by my mother. 11. " when   did he get this letter? " "a week ago". 12. if she does not come, we won't be able to finish the work. 13. they will be working the whole evening tomorrow. 14. this novel   was written last year? 15. tom   has been writting this report for two days. 16. what novel   is she writting   now? 17. what   were you doing   when i called you? 18. the clock   will have been repaired by next monday. 19. when the manager came, we   had not written all the letters yet. 20. has your bag been found yet?