从所给的四个选项中选择最佳答案

When I put my hand on his chest, I could feel his heart still _____．

[　　]

A．beat　　　　　　　 B．to be beating

C．beating　　　　　　D．was beating

从所给的四个选项中选择最佳答案

They found a _____ old woman _____ on the ground when the door was broken open．

[　　]

A．dying, lying　　　B．dead, lied　　　C．death, laying　　　D．died, lain

We all think ________our duty to help those who are weak in their studies．

[　　]

从所给的四个选项中选择最佳答案

You can hardly imagine a child _____ so cruelly．

[　　]

A．to treat　　　B．to be treated　　　C．being treated　　　D．treating

The food that you bought yesterday should be eaten ________．It may go bad if you don't．

[　　]

Does the storm do any ________the corn？

[　　]

从所给的四个选项中选择最佳答案

They are busy _____ for the exam．　　　

[　　]

A．to prepare　　　B．preparing　　　C．prepared　　　D．to preparing

Oh！Children，you ________ride the bicycle like that on the road．It's very dangerous！

Sorry，sir．We won't next time．

[　　]

从所给的四个选项中选择最佳答案

The secretary worked late into the night, _____ a long speech for the president．

[　　]

A．was preparing　　　B．preparing

C．to prepare　　　　 D．prepared

从所给的四个选项中选择最佳答案

We can't live _____ water _____ air．　　　

[　　]

A．with, and　　　B．with, or　　　C．without, or　　　D．no, or