16.arriving home she found her old friend already there.

A. On

B. For

C. By

D. With

17. He says he has the T-shirt,I' ve never seen him wear it.

A. after

B. since

C. although

D. if

18. When Annathe room, a group of young men were talking eagerly round the table.

A. enters

B. has entered

C. was entering

D. entered

19. --Do you mind if I open the window？

—

A. Yes, please

B. No, go ahead

C. No, please don' t

D. Yes,you' d better do

20. A museumin the city centre next year.

A. will be built

B. will build

C. was built

D. built