It’s reported that a plane with five people ________ crashed into the mountain several days ago．
问题描述：
It’s reported that a plane with five people ________ crashed into the mountain several days ago．
A.on board B.on the board C.in board D.in the board
答
答案A on board意为“在船上、在飞机上”,为固定的介词短语.没有B、C、D这样的搭配.查看原帖>>