问题
选择题
The parking meters are installed in streets to record and show the time _____ a driver
has paid for is finished
A．when
B．if
C．after
D．that
答案
答案：D
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The parking meters are installed in streets to record and show the time _____ a driver
has paid for is finished
A．when
B．if
C．after
D．that
答案：D