Sir,you_____be sitting in this waiting-room.It is for women

Sir,you_____be sitting in this waiting-room.It is for women and children only.
A.can’t B.shouldn't C.won’t D.needn't
请帮忙解答一下为什么正确答案是B,而不是A呢?

xml0192 1年前已收到5个回答举报

jackjing11 花朵

共回答了24个问题采纳率：91.7% 举报

=== I don't think you should be - - -- -
根据规定或者常理,你不可以- - - -- .
又如：John,you shouldn't play computer games all the time because you will have two tests tomorrow.So stop to go over your lessons.

1年前

lituntun 幼苗

共回答了37个问题举报

B，不应该，也有不可以的意思

1年前

xxxxzqxx 幼苗

共回答了3个问题举报

这里考的是语气，can't是不能，很强烈的语气，也很礼貌。
shouldn't 不应该这样就是很舒缓的语气了。并且前面用sir来做称呼。也可以看得出来，说话的人很有礼貌。

1年前

sadfger 幼苗

共回答了288个问题举报

of course B.因为该候机厅是专供妇孺的，你个大男人不该坐那儿。

1年前

yixiamo 幼苗

共回答了4个问题举报

ought / should 与进行式连用，不是表示动作正在进行
ought / should 与进行式连用时表示表示主语没有履行其义务，做了愚蠢、鲁莽的事等或做事不明智、不慎重等：
He ought to be studying for his exam. He shouldn't be spending all his time on the beach.
他本应该正...

1年前

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你能帮帮他们吗

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