He goes to school every day.A.takes a bus B.by a bus C.on a bus D.in a bus
问题描述：
He goes to school every day.
A.takes a bus B.by a bus C.on a bus D.in a bus
答
C （ 句中已有谓语动词，排除A，B应该是by bus，而坐公共汽车用ON，不用IN）
答
C
答
选择C,on a bus=by bus表示乘公交车