国分佐智子av番号:what are these?

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____(it) are apples

they work in_____(these) office

第一句,苹果是复数,所以可以用they/these/those.
第二句,office是单数,所以用this/that.

They
this

They
this

They
this

They
this

1、These,表示物体复数
2、This,虽然前面是They,但是后面的Office是单数,所以填this