1It was not until the accident happened_______.

1It was not until the accident happened_______.
A.when Ibecame aware of my foolishness
B.when myfoolishness became obvious
C.that didI realize my foolishness
D.that Ibecame aware of my foolishness
2As we know,physics _______the science ofenergy.
A.was
B.were
C.is
D.are
3The train _______of the station right ontime.
A.pulled
B.pulleddown
C.pulled on
D.pulledout
4I like this song_______ your opinion.
A.in spite
B.despiteof
C.regardless of
D.likewise
5______yousay,he won’t listen to you.
A.No matterwhere
B.No matterwhat
C.However
D.whichever
6Where did you get your watch ________?
A.repair
B.to repair
C.repaired
D.repairing
7He didn’t come yesterday.He ______busyworking in the lab.
A.must be
B.wouldhave been
C.must havebeen
D.would be
8______,he must be totally exhausted aftera two weeks’ trip by bus.
A.Beingvery strong
B.A astrong man
C.Strong ashe is
D.As he isstrong
9 How I wish that I ________law when I wasat college!
A.hadlearned
B.wouldhave learned
C.learned
D.wouldlearn
10No sooner ______than he realized that heshould have remained silent.
A.the wordshad spoken
B.had thewords spoken
C.the wordshad been spoken
D.had thewords been spoken