一道虚拟语气的题i'm already thirty---too old for a swimmer.if i ______in an international competition now,i wouldn't win.A am swimming B swimc might swim D swam 要理由,越清晰越好
问题描述：
一道虚拟语气的题
i'm already thirty---too old for a swimmer.if i ______in an international competition now,i wouldn't win.
A am swimming B swim
c might swim D swam
要理由,越清晰越好
答