1.Unless you tell me the truth,I won't___help you --OK.Butthis is a secret between us.A.can B.could C.be able to

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1.Unlessyoutellmethetruth,Iwon''t___helpyou--OK.Butthisisasecretbetweenus.A.canB.couldC.beableto1.Unl

1.Unless you tell me the truth,I won't___help you --OK.Butthis is a secret between us.A.can B.could C.be able to
1.Unless you tell me the truth,I won't___help you --OK.Butthis is a secret between us.
A.can B.could C.be able to

1.Unless you tell me the truth,I won't___help you --OK.Butthis is a secret between us.A.can B.could C.be able to
C.be able to 表示能愿
不能选AB 他们表示有“能力”

C 有能力做某事
情态动词 的否定形式不能用助动词否定,所以排除AB

c吧,不确定

选择C.“Unless you tell me the truth”是一个条件状语,主要看主句“I won't___help you",A.B是情态动词,won't也是,情态动词不连用,在此选A或B造成情态动词的重复

毫无悬念的c

c

can could 表示能力,而据题意不是能力,而是表意愿,所以选c