It’s a very kind offer, but I really _____ accept it. 
#89462
A
mustn’t
B
needn’t
C
can’t
D
don’t
推荐题目
_______ we _______ the new policy for economy, we would never have bought the house.
#87167
A
If ; predicted
B
Did; predict
C
If; have predicted
D
Had; predicted
I     have written to him because he phoned me shortly afterwards.
#88224
A
ought to
B
must
C
couldn’t
D
needn’t
I insisted that a doctor ________ immediately.
#86728
A
has been sent for
B
sends for
C
be sent for
D
will be sent for