―I didn’t ask for the name. Why ______ on my desk?（ ）

―I put it there just now in case you needed it.

A. does it land　　 B. has it landed　 C. will it land　 D. had it landed

A computer does only what thinking people ____.

A. have it do　　　　 B. have it done

C. have done it　　　 D. having it done

The fact that smoking is harmful to health is 　　　　most smokers are quite aware of．

A．what　 B．which　 　 C．where 　　 D．that

once引导的条件状语从句，省略了it is。

_______ knows the truth will tell you about it , I think .

　 A. Who 　 B. No matter who

　 C. Whoever 　 D. B and C

Sometimes ________ English is quite different from _______ English in many ways.

A. speaking, writing　　　　　　　 B. spoken, written

C. speaking, written　　　　　　　 D. spoken, writing

When and where to go________________________(还未确定) yet.(decide)

Gone are the days ________ you could buy a three?course meal for less than 10 yuan.

A．on which　　　 B．which　 　 　C．when　　　　　 D．why

He yielded to _______ (好奇心) and opened the letter to addressed to his sister.