问题描述：
thank you for h____ me with swimming.
those v_____ are good for us.they're healthy food.
用am,is,are填空.
excuse么!_____this your eraser?
what ____those?____they birds?
this ____his ruler.where ____my ruler?
I ____in class three.
_____these her english books?
thoser _____their apples.where ___-his apples?
she____eleven.how old ____is that boy?
those v_____ are good for us.they're healthy food.
用am,is,are填空.
excuse么!_____this your eraser?
what ____those?____they birds?
this ____his ruler.where ____my ruler?
I ____in class three.
_____these her english books?
thoser _____their apples.where ___-his apples?
she____eleven.how old ____is that boy?
问题解答：
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