2. Mary began to keep pets ________.

　 A. two years ago　　　　 B. in two years　　　 　 C. for two years　　　　 　 D. since two years ago

1. There are several ________ in our school. And they often tell us something about ________.

　 A. Germen…Germany　　　　　　　　　　　　　 B. Germans…Germany

　 C. Germanies…German　　　　　　　　　　　　　 D. German…Germany

20. Jack would rather _____________ (not live) in the country house by himself.

19. He didn’t open the door because he _______________ (leave) his key in the office.

18. Mr Black said he _____________ (take) us to the zoo the next time.

17. There was a knock at the door while I _______________ (listen) to music.

16. Look! In the basket _____________(be) some fresh fruit and eggs.

15. --_____________ your parents _____________ (write) to you recently?

--Not yet.

14. --He ____________(plan) to buy a computer next month.

--Oh, is he?

13. They ____________(stay) in London for nearly two months last year.