Ответ:

1 - It must have rained heavily this month

2 - It can't have finished already

3 - It can't have been easy to learn such a difficult language

4 - It must have been a very tiring journey

5 - You must have eaten something strange

6 - Sandy must have invited him

7 - Someone must have left the back door open

8 - He can't have finished shopping

9 - She might have gotten a phone call from Jason

10 - It can't have been very heavy

Объяснение:

Hope this helps :)