国开题库
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Thisscientisthasbeen______thisproblemforabouttenyears.
#A.workingout#B.workingon#C.workingoff#D.workingup
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Thisistheman___lastnight.
#A.whomIsawhim#B.whomIsaw#C.whoIsawhim
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Thisisaniceone.Isit______?
#A.your#B.yours
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Thisisagoodcopyofthepainting.The______isintheNationalGallery.
#A.earlier#B.previous#C.former#D.original
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Thisis______newsuit.Doyoulikeit?
#A.my#B.mine
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Thisdanceiswithyoungpeopleallovertheregion.
#A.same#B.popular#C.welcome#D.favorite
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This, they argue, will be essential to the needs of a booming population in decades to come and avoiding starvation.（考点：be essential to sth/doing sth）
#A.meet#B.meeting#C.met
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This, they argue, will be essential to the needs of a booming population in decades to come and avoiding starvation.
#A.meet#B.meeting#C.met
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This will offer you a chance to meet people.
#A.a kind of#B.every kind of#C.all kinds of#D.kind of
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This will make______ easier to transfer money and make loan payments online.
#A.that#B.it#C.the thing
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