You would have helped your mother do some housework. But you ____.
#89579
A
don’t
B
didn’t
C
wouldn’t
D
weren’t
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There used to be a small school,___________?
#90055
A
was there
B
wasn’t it
C
usedn’t there
D
usedn’t it
--I once got lost during my first visit to Beijing. -- Oh, did you? You ____ me as your guide. 
#88052
A
might have asked
B
could ask
C
would have asked
D
would ask
I     have written to him because he phoned me shortly afterwards.
#88224
A
ought to
B
must
C
couldn’t
D
needn’t
—What happened to the young trees we planted?—The trees       well, but I didn't water them.
#87410
A
might grow
B
needn't have grown
C
would grow
D
would have grown