动词不定式语法选择题。关于主动表被动的、

Question

——Did the judge ask you many questions?
——Yes,and___.
a,they were difficult to be answered
b,to answer them was to be difficult
c,they were difficult to answer
d,they had difficulty in answering
答案是c，为什么不用a 问题不是被回答的吗？如果是主动表被动，想问一下什么时候用主动表被动。。（最好说通俗点，不要说一大串专业的什么）

Answer 1

很简单 当不定式做补语时 当两者联系很紧密时就可以不同被动语态
如 I have something to do 理解为 do something
I have a lot clothes to wash 理解为 wash clothes
I have a lot of homework to do 理解为 do homework
凡是这样的句子你都可以直接使用 to do 不用考虑 to be done也就是不定式的被动语态！

Answer 2

是c,因为在difficult easy hard 等形容词后的不定式，通常用主动形式表示被动意思。如：
the man is easy to deal with

Answer 3

应该选择C，因为当动词不定式和前面的名词存在动宾关系时，不需要用被动语态，用主动的就可以了，这里的they 指的就是questions，而和answer
有动宾关系，你只需要记住：I have a lot of homework to do。这个句子，以后这种题就会做了。希望你明白了我的意思。

Answer 4

be +形容词+不定时，可以用主动表示被动关系