How many _______are there in a week?

We should........all the electric appliances when leaving our room.

Excessive smoking is liable to cause ______ cancer.

If you have a _____ to make about the food, I am willing to listen.

It is thought that traditional marriage _______ are important basis of limiting divorce rates.

Mr. Thanh will be Singapore …………….. Monday to Thursday.

He must give us more time, ______ we shall not be able to make a good job of it.

What are the _______ of that country? - I think it is some kinds of cheese and sauces.

The teacher encourages the _______________ of the pupils in each lesson.

Many people were injured when the building..........

The fog made it difficult for the driver to see when the traffic lights _____.

______ to leave early is rarely granted.

Dave has a good______of humor.

 As soon as the children were _____ , their mother got them out of bed and into the bathroom.

When the other car hit mine, it made a huge _______ in my rear bumper.

 The us eof plastics for shoes _____ of leather has ruined shoe repairing as a business.

 The children played in the park while their mother _______. 

 Tropical diseases are comparatively _____ in Britain.

As the storm drew nearer, black clouds were _______ over the sky.

He knows so much about the stars that I am sure it would be impossible to find his ______.

Police officers working on the murder have ______ hundreds of families.