题目内容：

Could I borrow that book when you have finished( )it?
a.to read b.not to read c.in reading d.reading

优质解答

D reading
结构：finish doing sth.做完某事
不明白的再问哟,请及时采纳,多谢!

追问：

If the train arrives ( )it should be 3 o'clock exadtly. a.in time b.on time c.from time to time d.at times

追答：

B on time 按时