问题

The company has a free long-distance telephone number_____ customers may call with any questions they have about the products .

A:when
B:so that
C:while
D:as

正确答案是：

同类题型

Would you like some candies–_______. I have got a sweet tooth.

The game __________ by all the students.

To his ______, he didn’t get _____ trouble.

man body consists of organs, each ____a definite job to do.

Our English teacher is often _______ togive a talk on English study. He is popular.