用冠词a,an或the填空.1、----------ruler is green.2、This is---------book.-_英语解答

用冠词a,an或the填空.
1、----------ruler is green.
2、This is---------book.---------book is Grace's.
3、Look at----------cup.It's------------black cup.
4、It's----------orange is orange.
5、what's that?
It's---------English dictionary（词典）.

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解答

1、--the--------ruler is green.
2、This is---a------book.----the-----book is Grace's.
3、Look at----the------cup.It's-----a-------black cup.
4、It's--an--------orange is orange.
5、what's that?
It's----an-----English dictionary（词典）.