问题

Playing with a cell phone, he suddenly _____ the teacher staring at him.

A: knew of
B: became aware of
C: reflected
D: aware for

正确答案是：

同类题型

Everyone wants to have a holiday,but you have no idea____tiresome it is to rest.

“Three” is three times _________ “one” and twice _________ “one”.

You should made it a rule to leave things _______ you can find them again.

Jill and Anna were tired, but _______ of them stopped to have a rest.

________ with care, one tin will lastfor six weeks.