two nouths后面用is还是aretwo mouths ----- quite a long time A be B are C is D was

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two nouths后面用is还是aretwo mouths ----- quite a long time A be B are C is D was
two nouths后面用is还是are
two mouths ----- quite a long time
A be B are C is D was

two nouths后面用is还是aretwo mouths ----- quite a long time A be B are C is D was
C 这个句子里two months 是一段时间,一段时间当然是单数

B are

C

c is,两个月是一段时间

C
这里两个月表示一段时间,所以用is

answer:C
is