1.Thedictionarycosthim100yuan
2.Ifyoudon'tdoexercise,youwillbeunhappy
3.Whataboutgoingtoschool?
4.Whathappenedtothelittleboy?
5.Thestudentsdidn'tleaveuntiltherainstopped.
6.Wedont'tknowwherewecango?
7.Theydidn'tknowwhattheycoulddo?
8.Hedoesn'tknowhowhecanoperatethetrain.
9.whynotsendhimtoprison?
10.youneverforgetwhatyoushoulddo.