用所给单词的适当形式填空(带讲解) look at his butterflies.____ ( it is ) flying in the garden .

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用所给单词的适当形式填空(带讲解) look at his butterflies.____ ( it is ) flying in the garden .

用所给单词的适当形式填空(带讲解) look at his butterflies.____ ( it is ) flying in the garden .
用所给单词的适当形式填空(带讲解) look at his butterflies.____ ( it is ) flying in the garden .

用所给单词的适当形式填空(带讲解) look at his butterflies.____ ( it is ) flying in the garden .
正确:They are (由前文的butterflies得知体现复数,代词they指代butterflies, 相应的,is 转变为复数形式are).

They are.
由于前面his butterflies为复数,再从look at...从语境上现在进行时最佳!!

they are 因为butterflies 是复数嘛

Look at his butterflies. They are( it is ) flying in the garden .
They are指代前句的butterflies(复数),因此,人称代词和be动词也需用复数.

They are

前面是butterflies,复数,因此也用复数的人称代词和be动词