They go to the office(( )every morning A.by a bus B.by bus.C.take buses D.take a bus
问题描述：
They go to the office(( )every morning A.by a bus B.by bus.C.take buses D.take a bus
且 说出理由
答
B .A.by是介词后面直接加名词.C D 都是强调动作,可以使用,但是顺序要调到go前面且加上介词 to.