问题

We laugh at jokes，but seldom about how they work．

A:we think
B:think we
C:we do think
D:do we think

正确答案是：

同类题型

Being blind is something ________most people can’t imagine.

We don’t know Jack Bruce.

It’s high time we _______ effective_______to improve your working conditions.

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Thanks for your help.— ________