He has been staying at home ______ days. (      ）

A. these all last few

B. these last few all

C. all these last few

D. these last all few

His score of the final English exam is higher than ______ in his class. (      )

A. anyone's else

B. anyone else      

C. anyone's else's

D. anyone else's

During extremely hot weather, elephants require both mud and water to keep their skin cool ______ they have no sweat glands. (      )

A. and

B. so

C. because of     

D. due to the fact that

The audience ______ requested to remain seated during the intermission. (      )

A. are

B. is

C. were                

D. be

 It has been found that how close parents are to their children ______ a rather strong influence on the development of the children's character. (      )

A. have       

B. has        

C. having     

D. had