1.I'm afraid we'll have to work extra hours for there are still some problems (remaning ) to be settled 为啥是remaining 不是r

问题描述:

1.I'm afraid we'll have to work extra hours for there are still some problems (remaning ) to be settled 为啥是remaining 不是remained?
2.
the scientist was rewarded for (having made) such 啊greatcontribution to the country
括号里making不行吗?一定要用having made?

1.remain本身是个主动形态的不及物动词,意思是什么事物“留下、剩下”,而不是被动式的什么事物被人留下、剩下.所以这题不能用过去分词表被动.2.句子时态是过去时,be rewarded for是对此之前的事件的奖励,也就是过去...