The old man kept on studying Chairman Mao’s ___ in his ___.

 I want to learn more about the American political system, but I don't know where to get the ________ . 

Soon I heard a_______like that of a door burst inand then a climb of feet.

 I don't think the charge for overhauling （大修）the equipment is excessive in _____ to its size.

The members of the club wouldn't run a ____ entrusting（委托） the organization to an unreliable person.

 His new appointment takes _____ from the beginning of next month.

The police are offering a __________to anyone who can give information about the lost key.

His _________ estimated at fifty million dollars.

I haven t much ________ in his honesty.

I know that our geologists think highly of his researches in the ______

I heard a soft _______ at the door. When I looked up, I found it was Mary. 

If by any chance someone comes to see me, ask them to have a __________.

To the sea captain's surprise, he found that ________ travel could also be quite pleasant.

According to a UN report, a third of the world population have no ______ to clean drinking water and health care．

— What should I do before operating the new machine?— You’d better read its ______ first carefully.

—Where does your sister work, Jack? —She works in a ___________. 

—Look! This is__________ . —Very beautiful. When did she take it? 

—What do you think the ___________should do first?—They should learn to take ___________as well as share rights in life. 

For the sake of her daughter’s health, she decided to move to a warm ______.

 --- What would you like, sir? --- ______.