4. Is this the ______ pen?

　　　 A. fifth　　　　　　　 B. nineth　 C. twentith

3. Please ______ the computer for me, I want to send an email.

　　　 A. switch　 　　　 B. switch on　 C. open

2. Where ______ they have lunch at the weekend?

　　　 A. does　　　　　　　 B. do　　　　　　　 C. are

1. Mr. Wang often ______ travel plans on his computer.

　　　 A. does　　　　　　　 B. likes　　　　　 C. makes

10. -How do I open a new document?　

　　　 -______ “new document”.

9. First, we should ______ on the computer.

8. You must ______ your computer to your telephone.

7. Do you often ______ music from the Internet?

6. When you finish your document, please ______ your spelling.

5. Tony doesn’t use a computer ______ (do) his homework.

B).从方框中选择合适的词汇，并用其英文形式完成句子。