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How many cookies could a good cook cook if a good cook could cook cookies?
A good cook could cook as much cookies as a good cook who could cook cookies.
如果一个好的厨师能做小甜饼，那么他能做多少小甜饼呢？一个好的厨师能做出和其它好厨师一样多的小甜饼。
I had an amusing experience last year. After I had left a small village in the south of France,I drove on to the next town. On the way,a young man waved to me. I stopped and he asked me for a lift.As soon as he had got into the car,I said good morning to him in French and he replied in the same language.Apart from a few words,I do not know any French at all.Neither of us spoke during the journey.I had nearly reached the town,when the young man suddenly said,very slowly,'Do you speak English?'As I soon learnt,he was English himself!
★Key structure:
过去完成时(9AUnit5):
时间状语从句中，如果两个动作都发生在过去，同时发生，要用过去进行时态；如果一先一后发生，先发生的动作用过去完成时，后发生的动作用一般过去时。
