问题

All Mrs Smith’s efforts to tidy the room were _____ because her grandson soon made a mess of it again.

A:at all costs
B:at random
C:in vain
D:in return

正确答案是：

同类题型

It’s a long time________I saw you last.—Yes，and what a pity it is now that it will be a long time________we seeeach other again.

I’d like Johnson to take the job. -He is____ . Better not add to his workload.

下列各项划线字的注音和每个选项最后一个词的字形全都正确的一项是

How nice the fish_______!- I am glad you enjoy it. Do you know it_______ by me

He has a great interest in tennis and ______ it twice a week over the past year.