(   ) 15. It sounds      to use "Could you..." than "Can you...".

A. polite        B. politely

C. more polite    D. more politely

(   ) 14. Whether we'll go for a picnic tomorrow        the weather.

A. depends on B. works on    C. gets on    D. passes on

(   ) 13. Could you please      mc where to park my car?

A. tell    B. to tell C. telling    D. told

(   ) 12. We should spend more time      how to ask for help politely.

A. learning    B. to learn C. to learning    D. learn

(   ) 11. ―I'll not be Jack's friend any more.

―-Don't be angry. He's just so       but in fact he's good to us,  you know.

A. helpful    B. direct C. polite    D. brave

10. It's important to learn how to use language      (direct).

9. The      (speak) gave us a good speech last week.

8.________ (who) did you give the book to?

7. He spent much time      (work) out the difficult problem.

6. When the guest entered the hall,Mr. White stood up and greeted him       (polite).