--Can I tell my best friend about it? ---No. I don’t want anyone else to know. You _________ let it out. 
#88317
A
mustn’t
B
won’t
C
don’t have to
D
don’t need to
推荐题目
 But for friction (摩擦力), people ______ neither walk, nor even stand up.
#86752
A
can
B
were able to
C
will be able to
D
could
I suggested to my father that we ______ to Shanghai for a holiday this summer,but the expression on his face suggested that he ______ to it.
#87674
A
go; shouldn’t agree
B
would go; shouldn’t agree
C
go; didn’t agree
D
would go; didn’t agree
If they       what I was saying, they'd know what I was talking about
#86853
A
took the trouble to listen to
B
had trouble listening to
C
take the trouble to listen to
D
have trouble listening to