He leaves school ________4:30. He will ________ at about 5:00.
A:in; get to home
B:on; get to our home
C:at; get home
D:after; get to home
某种长途电话的收费方式如下:接通电话的第一分钟收费a元,之后的每一分钟收费b元。如果某人打该长途电话被收费8元钱,则此人打长途电话的时间是( )
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