High in the sky a _____ of birds was flying southward.

All the students were excited at the _______ of a weekend sports competition.

He is ______ a very old man but in fact he is only fifty.

The 'ao dai' is the...............dress of Vietnamese women.

When I came through the customs at the airport, I had to pay ____ on a clock I had bought.

He gave his listeners a vivid ______ of his journey through Peru.

 Please sign your name here on the _______ line.

How many _______are there in a week?

We had a  _________________ trip to Nam’s home village?

When he makes a _____ by car, he takes his family with him.

It is not easy to ________ our beauty when we get older and older.

It is parents' duty and responsibility to _______ hands to take care of their children and give them a happy home.

 If the boy had ______ the dog alone it wouldn’t have bitten him.

 There is _____ that I may have to go into hospital next week.

 Let me know if any difficulties _______.

We need a tent to go_______

Excessive smoking is liable to cause ______ cancer.

Be quiet! It’s rude to ______ people when they are speaking.

 If you want to telephone him you will have to ______ the number in the book.

 Because of the fine weather, we had all our classes in the ______ air.

Lan has beautiful teeth. Her teeth are________.