The police tried to get some clues from the suspect, but he remained______.

       A．silent        B．quiet                C．calm          D．secret

________by the advances in technology, many farmers have set up wind farms on their land.

A. Being encouraged    B. Encouraging   

C. Encouraged         D.Having encouraged

 Not until I began to work ____ how much time I had wasted.

A. didn't I realize   B. did I realize  C. I didn't realize   D. I realized

 It was_______ that they went for a drive in the countryside.

      A. such a fine weather     B. so fine a weather

C. such fine weather       D. so fine weather

Simon made a big bamboo box       the little sick bird till it could fly．

       A．keep              B．kept               C．keeping           D．to keep

 Nowadays it is difficult for people to find ________ work everywhere because ________ economic situation is very serious.

A. 不填；an          B. a; the            C. 不填; the          D. a; 不填;

 Mr. Black was old, but able to _______quickly to changes in technology.

A. reply    B. apply    C. contribute     D. respond

 When I met Becky, she told me that she ______ for an interview the next day.

A. would go       B. has gone       C. went       D. had gone

 Many high school students wish that they ______ at a top university in the future.

A. had studied    B. studied      C. have studied        D. could study

 When I was in primary school, I was told that the earth ______around the sun.

A. had travelled    B. would travel    C. travels      D. travelled