热身训练
1.The children were leaving school on Tuesday _______ they saw an accident。
A.when B.while
C.because D.after
2.We won"t go to the park __ it is fine tomorrow。
A.if B.when
C.because D.unless
3.We"ll see Uncle Wang this Sunday if it ___。
A.won"t rain B.isn"t rain
C.doesn"t rain
D.didn"t rain
4.What was the party like?
Wonderful.It"s years ___ I enjoyed myself so much。
A. after B.when
C. before D. since
5.None of them knew it ______ the teacher told them。
A. when B. until
C. after D. though
6.I hope you"ll enjoy your holiday, Tom。
Thank you, grandma. I"ll call you ______ I arrive there。
A.as soon as B.when
C.before D.until
7.She ______ Chinese since she came to China。
A.studied B.was studying
C.has studied
D.is studying
8.Someone knocked at the door ______ I was answering the telephone。
A.while B.because
C.but D.as soon as
9.You should make a plan ____ you do everything important。
A.when B.before
C.after D.if
10.I don"t know _____ he will come tomorrow。
Don"t worry. _______ he comes, I"ll let you know。
A.when;If
B.if;Whether
C.if;If
D.whether,Whether
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