1. He is behind you/me.
2.I'm young/old.
3.是介词of/behing的宾语。
1.He is behind me/you.
2.I am very young/I am already old.
3.Yes
1 He is behin me/you.
2 I am young/I am already old.
3 you为表语
1.He is behind me/you.
2.I am very young/I am already old.
3.Yes
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