All passengers ______ are expected to fasten the seat belts when the plane takes

题型：不详难度：来源：

All passengers ______ are expected to fasten the seat belts when the plane takes off and lands．

A．on aboard

B．on board

C．on the board

D．on boards

答案

解析

考查短语搭配。句中on board为“在飞机上”之意。句意：当飞机起飞和降落的时候，所有的乘客都要求系上安全带。

举一反三

You can see a church ________.

A．at a distance	B．in the distance
C．for a distance	D．from the distance

题型：不详难度：| 查看答案

---- Which share is intended ________ me?
---- You can take ________ half. They are exactly the same.

A．for; any

B．to; any

C．to; either

D．for; either

题型：不详难度：| 查看答案

One of the greatest benefits of Internet friendships is that they are based on common interest ________ appearance, age or popularity.

A．in case of

B．in the form of

C．in spite of

D．instead of

题型：不详难度：| 查看答案

He burnt all the important documents____that they should fall into the enemy’s hands.

A．in case

B．for fear

C．so

D．unless

题型：不详难度：| 查看答案

Lately some scientists are experimenting ___________ white mice to ____________ this kind of medicine.

A．on,try on

B．with, test on

C．on ,test out

D．with,carry out

题型：不详难度：| 查看答案