Doctors should take special care when treating children because their breathing rate is different from（ ）of adults.

China has been following the foreign policy to develop relations with other countries on the（ ）of the five principles of peaceful co-existence.

When there are small children around, it is necessary to put bottles of pills out of（ ）.

He found it a great （ ） to be invited to such a grand occasion attended by the top celebrities and nobles in the town. 

There is no easy（ ）to the problem.

In our view, the root（ ）of the crime problem is poverty and unemployment.

——May I have the（ ）of dancing with you, Madame?
——Yes, of course.

A new food scandal has erupted, threatening to spoil the （ ） of McDonald's, Starbucks and Yum Brands. 

Please read the（ ）on the bottle of the medicine carefully and pay attention to the amount and the time to take the medicine.

Grandma told the story in a very sad（ ）and we were all moved.

I’m trying to break the（ ）of getting up too late.

Jane isn't feeling well today. I dare not do（ ）to upset her.

He didn't make （ ） clear when and where the meeting would be held. 

There are several means of mass communication. The newspaper is' one. Television is（ ）.

The medicine is on sale everywhere, you can get it at（ ）chemist’s.

–There is still a copy of the book in the library. Will you go and borrow （ ）?
–No, I’d rather buy （ ） in the bookstore.

（ ） will do good to a senior student to do a part-time job when he wants to know more about society.

Every officer and every soldier（ ）obey the rules.

Many a boy and many a girl（ ）it since then.

—Has anyone seen my glasses?
—（ ）.