问题

Hard as a teacher may try, he can’t ______to make all his students make a difference in study, letting alone in life.

A:make sure
B:be sure
C:guarantee
D:insure

正确答案是：

同类题型

It is believed that high achievers worktoward personal standards of excellence ______ material rewards.

Your parents bought you _____ books last year， right—Yes. _________ them is 20.

The book was boring .It wasn’t ___ to me .

_______ no one agreed with him, ______ he insisted on learning play the piano.

Who will go with you to your new school, your dad or mum—______. I will go there alone.