is that tom over there?no,it___be him ---i am sure he is much taller.a.must not b.may notc.won"t d.can "t 选哪个 为啥啊

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is that tom over there?no,it___be him ---i am sure he is much taller.a.must not b.may notc.won"t d.can "t 选哪个 为啥啊
is that tom over there?no,it___be him ---i am sure he is much taller.a.must not b.may not
c.won"t d.can "t 选哪个 为啥啊

is that tom over there?no,it___be him ---i am sure he is much taller.a.must not b.may notc.won"t d.can "t 选哪个 为啥啊
选D,由i am sure he is much taller可知,说话者确定那不是Tom,所以用can't,表示不可能;must not 表示禁止、不准;.may not表示可能不,是不确定的猜测;won"t则表示将来不会

a. 表示肯定的推测。
b. c.d. 都不是肯定的推测。故选a

选d
must not——禁止,不允许。——用法不当。
may not——也许不是——不,也许不是他。和后面的I am sure矛盾。
won't——将来时——不,不将是他。句意不通。
can't——不可能——不,不可能是他。