...asn't using it.答案里有两个让我感觉迷惑的选项could have done和may/might have done.我看薄冰写的只能选择could have done表示本来可做却没做的事,这里应该可以用may/might have done吧,它们两个应该和could have done应该都可以表示推测或者虚拟...
How
far 和 how long
的用法比较湖北武汉
黎反修 询问距离时,要用 how far 而不用
how long 。例如:“How far is your house from here ?
----- Not very far . About half a mile . 你家离这里有多远?-----
不太远,大约有半英里路。”
“不可说:How long...