问题
选择题
—When did he leave the classroom?
—He left you turned back to write on the blackboard.
A．the minute
B．the time
C．until
D．before
答案
19．A
the minute="as" soon as，一…..就…..，你一转身，他就离开了。故选A。
搜题请搜索小程序“爱下问搜题”