问题

Ann is so careful that she always goes over her exercises to _______ there are no mistakes.

A:look for
B:make sure
C:find out
D:think about

正确答案是：

同类题型

I regret ______ to my head teacher,not listening to him.

more quickly he will learn aforeign language

The general at last got a chance to visit the village_________he used to fight, _________he had been dreaming of for years

The exhibition tells uswe should do something to stop air pollution.

_______ as many local people as possible when you are abroad and you find it easier to overcome the culture difference