1.--When will she come back from her summer holiday?

--I’m not sure. Maybe ______ a week.

A. before       B. in      C. after     D. at

2. — Would you like some bread or cookies ?

—________, thanks. I don’t have any food before going to bed.

A. Any     B. None   C.  Either   D. Neither

3. — I wonder if he______ us in the discussion tonight’

  — I believe if he _______ his homework, he will join us.

A.  will join; will finish  B. will join; finishes  C.  joins; finishes   D. join; will finish