英语语法我不会啊,下半部分

英语语法我不会啊,下半部分
20.The company official ____ I thought would be fired received a raise.
A.whom B.whoever C.who D.of whom
21.Mr.Green ________ my letter,otherwise he would have replied before now.
A.must have received B.must have failed to receive
C.must receive D.must fail to receive
22.We shall appreciate _________ from you soon.
A.being heard B.hearing C.to hear D.having been heard
23.I fell and hurt myself while I ______tennis.
A.was playing B.am playing C.play D.played
24.________ you disagree with her,I think her idea is still worth considering.
A.Even if B.If only C.Instead of D.Despite of
25.I’d _______ you didn’t touch that,if you don’t mind.
A.rather B.better C.happier D.further
26._________ I saw was two men crossing the street.
A.That B.Whom C.Who D.What
27.A curve is a line _________ no part is straight and which has no angle.
A.of which B.whose C.in which D.that
28._________ I’m mistaken,I’ve seen that man before.
A.Because B.If C.Unless D.Provided
29.I ________ on the door for ten minutes now without hearing an answer.
A.was knocking B.am knocking
C.knocking D.have been knocking
30._______ tired after a hard work ,she fell into bed and went straight to sleep.
A.Felt B.Feeling C.Being felt D.To feel