问题

We need to be______ the long-term effect of playing computer games too much on children.

A:concerned about
B:amazed at
C:threatened by
D:tired of;

正确答案是：

同类题型

. To __ terrorism, what action should be taken?

The approach _________ the problem is contrary ________ our expectations.

The committee is discussing the problem right now. It will ________ have been solved by the end of next week.

Hello! May Flower Hotel.Can I help you?-Do you have a room for this weekend? [ ]

How can I wake up so early, Jack–Set the alarm at 5 o’clock you’llmake it.