Sally knocked on the door but answered．（ ）
| A． |
somebody |
B． |
nobody |
C． |
everybody |
﹣Aamir Khan played the part of a great father in the movie The Tale of Fatherly Love．
﹣___________ excellent actor he is!（ ）
A．WhatB．What aC．What anD．How
Betty ___________ hard since last term．That's why her exam results are so good!（ ）
A．has workedB．will work
C．workedD．was working
"A white elephant"means something that is useless，___________ it may cost a lot of money．（ ）
A．unlessB．untilC．sinceD．although
Sue wasn't happy because she ___________ the concert given by her favorite singer．（ ）
A．missesB．missedC．will missD．is missing
Johnson won't answer the phone if he ___________ the number．（ ）
A．knewB．doesn't know
C．will knowD．didn't know