词汇题，从每小题所给的A、B、C、D 四个选项中选出可以填入空白处的最佳选项。

The eggs will go bad soon in such hot weather _____ they are put in the fridge.

  A. although            B. because           C. unless        D. until

His uncle     for more than 9 years.

A. has come here  B. has started to work 

C. has lived there  D. has left the university

      has Mr White been a member of Greener China since he     to China?

A. How soon, comes  B. How often, got   C. How long, came   D. How far, arrived

The students have cleaned the classroom,      ?

  A. so they      B. don’t they     C. have they     D. haven’t they

My parents _____Shandong for ten years .

　Ａ. have been in   Ｂ. have been to Ｃ. have gone to   Ｄ. have been

Miss Green isn't in the office . she____ to the library .

　Ａ.has gone    Ｂ. went        Ｃ.will go         Ｄ. has been

It ___ ten years since he left the army .

　Ａ.is          Ｂ. has          Ｃ. will           Ｄ. was

Hurry up! The play ______ for ten minutes .

　Ａ. has begun   Ｂ. had begun    Ｃ. has been on    Ｄ. began

—How long have you ____ here ?

　  —About two months .

  Ａ. been        Ｂ. gone        Ｃ. come         Ｄ. arrived

 —Do you know him well ?

　　—Sure .We _____ friends since ten years ago .

  Ａ. were       Ｂ. have been    Ｃ. have become   Ｄ. have made