1.Alloftheplantsnowraisedonfarmshavebeendevelopedfromplans_______wild.
A.thatoncegrewB.oncetheygrewC.theygrewonceD.oncegrew
选A
没看懂是啥意思
2.Ifonlyshe_______atthattimethatthediseasewascurable.
A.knewB.knowsC.hasknownD.hadknown
选D
是虚拟语气吗?
3.Thestudentsexpectedthere________morereviewingclassesbeforethefinaltest.
A.isB.beingC.haveD.tobe
选D
为什么用不定式
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