after you read the letter,please ( )TomA passing toB pass it onC pass it on toD pass to求原因

问题描述:

after you read the letter,please ( )Tom
A passing to
B pass it on
C pass it on to
D pass to
求原因

C pass it on to
既用pass,则 it 和 to 缺一不可,it 代替the letter,to 向/给,至于on 可有可无,有了则有一种不可拖延的感觉