单项选择题
I gave John a present but he gave me nothing （）.
A.in return B.in turn C.in hand D.in vain
单项选择题 Aftersayingthat，he（）thedoorquickly.
单项选择题 You’dbetter（）adoctorassoonaspossible.
单项选择题 We’ve（）paperandink.AskMrs.Edwardtolendussome.
