问题

Don’t waste your time. You should ________ your work.

A:hang out
B:look for
C:concentrate on
D:go by;

正确答案是：

同类题型

Your idea（想法） very good.

It’s the fact _____ he doesn’t know his ownbirthday surprises us all

May I have a rest I have alreadyfinished ______ the report.

get two tickets of Despicable Me Ⅱ, as I have promised .

You’d better begin the preparations now and the most important thing is to check ______ the laboratory can be used for the tests[ ]