56.Nosoonerhadtheygotofftrain_______itstartedmoving.
A.when
B.than
C.then
D.after
57.Wecandonothingunlesswe_____moreinformation.
A.aregiven
B.weretobegiven
C.willbegiven
D.weregiven
58.Mostenvironmentalproblemsexistbecauseadequatemeasuresforpreventingthem_____takeninthepast.
A.wasnot
B.werenot
C.werenotbeing
D.beingnot
59.Thefootballmatch_____intheafternoon.
A.hasbeenheld
B.isbeingheld
C.isgoingtobeheld
D.willhold
60.I’lltakedownyournameandaddressincaseyou_____asawitness.
A.willneed
B.willbeneeded
C.need
D.areneeded
编辑推荐:
(责任编辑:)