第22题: [单项选择]What kind of books does the man need A. Books on aviation B. The Wright Brothers’ life story C. Festival and celebration books D. City council history 参考答案:B
A. it is hard to get such a chance again B. to get such a chance will be difficult C. one can never get such a chance again D. such a chance might never come again 参考答案:D 答案解析:[分析] 句意为:一旦失去了,这样的机会就再也不会来了。此句属部分倒装句,含假设条件的句子提前,句子成分要倒装。