问题标题：
英语时态题1.Itwasnotuntilhetookupfishingthathe_____torelax.A.hadbeenbeginningB.beganC.hadbegunD.beginning2.IknowMr.Brown,we______toeachotherataninternationalconference.A.wereintroducedB.havebeenintroducedC.areintrodu
问题描述：
英语时态题
1.Itwasnotuntilhetookupfishingthathe_____torelax.
A.hadbeenbeginning
B.began
C.hadbegun
D.beginning
2.IknowMr.Brown,we______toeachotherataninternationalconference.
A.wereintroduced
B.havebeenintroduced
C.areintroduced
D.hadintroduced
3.Unfortunately,whenIdroppedin,ProfessorWhite_____.Soweonlyhadtimeforafewwords.
A.hasjustleft
B.wasjustleaving
C.hadjustleft
D.justleft
4.-Hello,Jim.I______toseeyoutoday.Soniasaidyou____ill.
-Oh,I'mOK.
A.don'texpect,were
B.haven'texpected,are
C.amnotexpecting;are
D.didn'texpect;were
5.Bythetimeyougettotheairport,she______forNewZealand.
A/wouldbeleaving
B.hasalreadyleft
C.isleaving
D.willhaveleft
胡希明回答：
保证准确率!
1.B
not..until...的强调句型.
如果表示已经发生的动作,则主从句都使用一般过去时.
2.A
从句意来看,后句动作已经发生,且为被动结构.
且由状语ataninternationalconference,可知句意强调当时的情况,所以只需用一般过去时即可.
3.C
leave动作发生在dropin之前,即为“过去的过去”,所以用过去完成时.
4.D
说话人见到Jim后expect成了过去,而第二句主句为过去时,故用were
5.D
根据状语从句时态的“主将从现”原则,可知主句动作尚未发生,所以主句应该用一般将来时；
再结合bythetime的完成概念,判断主句必须使用将来完成时.
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