用冠词a，an或the填空。
- 培训职业
- 2025-05-06 09:29:25
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）.
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