来自孟明莘的问题
-Thewaterintheglassissweet．Didyouputanyinit？（）-Yes．Iaddedsometoitjustnow．A.sugarB.saltC.oil
-The water in theglass is sweet．Did you put any in it？（）
-Yes．I added some to it just now．
A.sugar
B.salt
C.oil
