问题

Is it that Jack often plays computer gamesmakes his parents worry about him ?—Yes , I think so .

A:what
B:when
C:that
D:which

正确答案是：

同类题型

Tom, why didn’t you go to work today?—Oh, the manager said he no longer wanted to see me again; _____, I was fired

I was lucky enough to get on the train before it ________.

really useful invention, with which doctors can find out what’s wrong with a patient more easily.

I ________ math but my brother ________.

Linda has never been to Italy, ____