It snowed heavily for three days and they were separated from the outside w

题型：不详难度：来源：

It snowed heavily for three days and they were separated from the outside world.

A．in the end

B．on end

C．by the end

D．at the end

答案

解析

略

举一反三

As is known to us, theory is based on practice and     servers practice.
A. by chance B. in turn   C. in return C. by turn

题型：不详难度：| 查看答案

a fire, hotel guests are asked to remain calm.

A．As a result of

B．In the event of

C．By reason of

D．In the time of

题型：不详难度：| 查看答案

He cut the cake .

A．in halves

B．in half

C．into halves

D．into half

题型：不详难度：| 查看答案

It was easier to move about the fringe of the crowd.

A．at

B．in

C．on

D．to

题型：不详难度：| 查看答案

---Has the train arrived?
---No, it all will be late half an hour.

A．at

B．for

C．in

D．by

题型：不详难度：| 查看答案