sorry,Frank.I'm busy today. I can't go swimming yousorry,Frank.I'm busy today. I can't go swimming you.-------------A.NO problem B.You're welcome C.that's all D.Never mind 为什么选D,不选其他呢?

问题描述:

sorry,Frank.I'm busy today. I can't go swimming you
sorry,Frank.I'm busy today. I can't go swimming you.-------------
A.NO problem B.You're welcome C.that's all D.Never mind
为什么选D,不选其他呢?