问题
选择题
---Why do you come back so late?
---Because there were too many people in the supermarket, and I had to _____to pay for the things.
A．wait in line
B．cut in line
C．stand up
D．speak loudly
答案
答案：A
考查固定短语。句意：----你为什么来的如此晚？----因为超市里有太多人，我不得不排队等候来付钱。故选A。