How__staying?A:long they will be B:long will they be 选哪个?有什么区别?

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How__staying?A:long they will be B:long will they be 选哪个?有什么区别?

B 他们将会在这里待多久?
区别:A是肯定句式,可以用于名词性从句中作宾语、主语、表语等;B是疑问句式,这里正好合适

B

=望采纳=