7：________ plan, the concert will be on Tuesday evening. A：Based on B：As C： Accordance to D： According to ...

1：The mud is a feeding ground for large _______ birds. B：a number of C：numbers of D：number of E：number ...

20：Advertising companies tell consumers about the price or _______ qualities of the products or services. B：particular C：special D：especial E：exceptional ...

14：Most students write questions or short _______ in the margins. B：remarks C：explanations D：notes E：comments ...

8：He was asked to _______ his concept of cool. B：define C：determine D：demand E：depend ...

2：It was necessary to extend the factory building _______ the company was doing more and more business. B：until C：lest D：although E：as ...

21：He met my mother, from ____ he got the news of my marriage. A：who B：whom C：which D：her ...

15：The man ___ has gone to Beijing. A：whom I told you B：which I told you C：whom I told you about him D：I told you about ...

9：____ surprised me most was ____ such a little boy of seven could play the violin so well. A：That,what B：What,that C：That,which D：What,which ...

3：I could have done it better, if I____enough time. A：have B：had C：had had D：have had ...