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许可与应答
1. 词组句型
我可以...
may I..., could I..., can I..., could I possibly...
sentence patterns:
May I read your book?
Could I keep it for one month?
Can I use your pen?
Could I possibly use your bike?
空的
vacant, empty, hollow
sentence patterns:
Is the room vacant?
The bottle is empty.
The bamboo is hollow inside.
