问题

No one can imagine the difficulty hehad _______ his son to get rid of the habit of playing computer games

A:whether
B:if
C:X
D:that

正确答案是：

同类题型

Is it polite to speak or laugh loudly -No, I don’t think so.

On the contrary, I think it is the mother, rather than her children, _________to blame. —I agree with you.

You may _that he will join our club.[ ]

. — Thank you for picking me up in thisremote area!— _____. I’m just going in the samedirection.

Who will send you to the new school, your mom, your dad or your uncle— _______. I’ll go there by myself.