My counsin is good at maths ,so there_be any trouble in his working out the problem.A.shouldn’t B.wouldn’t C.mustn’t D.needn’t

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My counsin is good at maths ,so there_be any trouble in his working out the problem.A.shouldn’t B.wouldn’t C.mustn’t D.needn’t

My counsin is good at maths ,so there_be any trouble in his working out the problem.A.shouldn’t B.wouldn’t C.mustn’t D.needn’t
My counsin is good at maths ,so there_be any trouble in his working out the problem.
A.shouldn’t B.wouldn’t C.mustn’t D.needn’t

My counsin is good at maths ,so there_be any trouble in his working out the problem.A.shouldn’t B.wouldn’t C.mustn’t D.needn’t
My counsin is good at maths ,so there_be any trouble in his working out the problem.
A.shouldn’t B.wouldn’t C.mustn’t D.needn’t
答:A
译:我表兄弟数学很好,所以他解出这个难题应该没有什么困难的.
析:表示推测,肯定用must,否定用can't,不用mustn't,排除C
needn't表示不必,不合句意.
wouldn't表示虚拟语气.这里不用.因为没有相应的虚拟条件句.也不是隐含虚拟条件:My cousin is not good at maths,or /otherwise there wouldn't be any.
shouldn't可以表示推测.

B

选A,
这里用should来表示说话人的主观看法。这种题型需要记住啊。。

A.
should表示的是说话人主观的感受。
would表示的更多是“将……”
must和need显然排除。

B

a

A

a表应该,B表意愿,C禁止,D不需要。你看看情景A吧

C

B