be afraid/ready/able/sure to do造句可以这几个词造几个句子给我吗?

问题描述:

be afraid/ready/able/sure to do造句
可以这几个词造几个句子给我吗?

i'm afraid to go out withoout you
i'm ready to swim across the river
i'm able to do homework by myself
i'm sure to tell you that your car had been stolen