He has waited _____ her for a long time.

Bien Hoa is secured .......... floods.

I must hurry. I want to get home ............. to see the football match on TV.

Education in many countries is compulsory ....... the age of 16.

When ______ Rome do as the Romans do.

My cat is very fond _____ fish.

I’m not very good ........... singing.

Vietnam carried _________an intensive program for its athletics, which included training in facilities, both home and abroad.

Do you think we’ll find a solution ___________ the problem?

You should pay more attention __________ what your teacher explains.

We had a lot of problem with our car. ........., we sold it and bought another one.

......... one enemy he has 50 friends.

She was very angry _____________ Tom.

John has gone away. He’ll be back ......... a week.

She wants to be financially independent ______ her.

An accident has happened .......... that family.

When are you leaving _________ Hanoi?

She smiled .......... him.

How would the body react__________ the extreme changes in temperature?

That is last year's telephone directory. It's .......... date now.

When you pick _________a book for the first time, check that it is not too difficult.