26．Theboycouldn’tgotosleepbecausehe_____toolong.
A.wastalking
B.talked
C.wouldtalk
D.hadbeentalking
27.Shehasbeenstudyinghereforfiveyearsandbytheendofnextsummershe_____.
A.willgraduate
B.willbegraduating
C.willbegraduated
D.willhavegraduated
28.Bytheendof1976,we_____thedemandforpetroleum.
A.met
B.havemet
C.hadmet
D.hadbeenmeeting
29.Whenyoucometonightateighto’clock,I_____eightlessons.
A.wouldreview
B.shallreview
C.shallhavereviewed
D.shallbereviewing
30.Makesurethatthedoors_____beforeyougoout.
A.locked
B.areloked
C.willlocked
D.lock
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