I happened to meet Mr.Smith at the school gate.同意句转换I( )Mr.Smith at the school gate( )( ).2.I( )Mr.Smith at the school gate( )( ).3.I ( )( )Mr.Smith at the school gate( ).

I happened to meet Mr.Smith at the school gate.同意句转换I( )Mr.Smith at the school gate( )( ).2.I( )Mr.Smith at the school gate( )( ).3.I ( )( )Mr.Smith at the school gate( ).
I happened to meet Mr.Smith at the school gate.同意句转换
I( )Mr.Smith at the school gate( )( ).2.I( )Mr.Smith at the school gate( )( ).3.I ( )( )Mr.Smith at the school gate( ).

I happened to meet Mr.Smith at the school gate.同意句转换I( )Mr.Smith at the school gate( )( ).2.I( )Mr.Smith at the school gate( )( ).3.I ( )( )Mr.Smith at the school gate( ).
I、【met】Mr.Smith at the school gate【by】【chance】
2、【met】Mr.Smith at the school gate【by】【accident】.
3、I 【came】【across】Mr.Smith at the school gate【occasionally】.
无疑后请采纳.
书山有路勤为径,学海无涯苦作舟.
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