将下列句子进行单复数互换 These are pens Is this an orange What's that in EnglishThose are apples Are these desks

按照给出的顺序，分别为：
This is a pen.
Are these oranges?
What are those in English?
That is an apple.
Is it a desk?

将下列句子进行单复数互换 These are pens ---This is a pen.
Is this an orange----Are these oranges?
What's that in English----What are those in English?
Those are apples ---That is an apple.
Are these desks---Is this a desk?

This is a pen
Are these oranges?
what are those in English?
That is an apple
Is this a desk?

These are pens- This is a pen.

Is this an orange - Are these any oranges ?

What's that in English - What are those in English ?

Those are apples - That is an apple.

Are these desks - Is this a desk ?

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不明白的再问哟，请及时采纳，多谢！