Who is the man over there?Is it Mr Li?No,it___be him.Mr Li is much taller.A.can’t B.may not C.mustn’t D.needn’t

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Who is the man over there?Is it Mr Li?No,it___be him.Mr Li is much taller.A.can’t B.may not C.mustn’t D.needn’t
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Who is the man over there?Is it Mr Li?No,it___be him.Mr Li is much taller.A.can’t B.may not C.mustn’t D.needn’t
Who is the man over there?Is it Mr Li?No,it___be him.Mr Li is much taller.
A.can’t B.may not C.mustn’t D.needn’t

Who is the man over there?Is it Mr Li?No,it___be him.Mr Li is much taller.A.can’t B.may not C.mustn’t D.needn’t
A
肯定推测用must,否定推测用can't(不可能)

A.can’t
can't表示不可能
may not表示也许不是
mustn't表示必须不
needn't表示不必
根据语境,A.can’t

a

B吧 个人意见

A

A 否定用cannot

A 确定
因为表示猜测的否定不能用mustn't 只用can't

A
不可能是他:It can't be him
这句话说的很肯定,所以不可能是B,D没必要在这里显然说不通, must一般不用否定式,否定也不表示不可能,是不必要的意思,所以这一条选A,can't 表示不可能.