Question

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

Answer 1

答案：B
解析：

解析：据题意，要检查自己作业的目的是确保不犯错误。make sure是固定词组，意为“确信”。故选B。

提示：

启示：sure是形容词，意为“确信的，把握大的，一定的”。如：I'm sure that he is right. 我深信他是正确的。 She isn't sure where she puts it. 她不确定把它放在什么地方了。 be sure to do sth.主语为人或物，表示说话人推测“一定，必然会”。 be sure of (that) 主语为人，表示主语感到“有把握，确信”。如：It is sure to rain. 天准会下雨。 She is sure of her answer.她对自己的回答有把握。