例2
The rain didn't stop until midnight.
可变为:It was not until midnight that the rain stopped.
* not until 也可变为特殊疑问句
例1
It was in 1949 that the PRC was founded.
可变为:When was it that the PRC was founded?
例2
Your dad worked in this factory two years ago.
可变为:Where was it that your dad worked two years ago?
10. have difficulty (in) doing sth. 做某事有困难
其中的(in) doing sth.不可改为to do sth.;其中的difficulty 是不可数名词, 前面可以用some/ no/ little/ much等词修饰.
Eg.
⑴We had no difficulty in finding the hospital.
我们毫不费劲地找到了这所医院.
⑵Did you have any difficulty in carrying the plan?
你们执行计划有苦难吗
⑶She has little difficulty in learning maths.
她学习数学几乎没什么困难
⑷I had much difficulty in talking with the foreigner.
我用英语同老外交谈很费劲
还可用下列句型表达 做某事有困难:
have trouble (in) doing sth.
There be difficulty in doing sth.
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