.--I sent him a most interesting story book  by mail this morning. --You____so; he's coming tomorrow morning.
#86514
A
needn't do
B
needn't have done
C
don't need to do
D
didn't need do
推荐题目
While watching television, __________.
#90451
A
the doorbell rang
B
the doorbell rings
C
we heard the doorbell ring
D
we heard the doorbell rings
He       you more help,even though he was very busy.
#89660
A
might have given
B
may give
C
must have given
D
might give