Who knows the key ____ Exercise 1?  Put up your Wap版

试题详情及答案解析: Who knows the key ____ Exercise 1? Put up your hands.
A. to B. of C. with; 答案：A; 试题分析：句意：谁知道练习一的答案？请举手。一般你要表达：……的钥匙,……的关键，必然是用the key to ，the answer to ……的答案；the solution to ……的解决方法。结合句意，故选A
考点：考查介词的用法。