1.Please show me your ticket _____ the concert,
问题描述：
1.Please show me your ticket _____ the concert,
A.at
B.in
C.to
D.on
2.Please _____ when they will leave for Beijing,
A.find out
B.find
C.look for
D.look
答
C 类似 key to the lock answer to the question
A find out 查明