问题
选择题
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
答案
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。
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