_________ you take part in physical activity _________ be able to keep fit and stay healthy．

Only if; you will

Only if; will you

Unless, you will

Unless; will you

_________ its low cost, the appeal of iron as a building material lies in its strength, its resistance to fire, and its potential to span vast areas．

Other than

Apart from

Except for

Rather than

_________ for the breakdown of the school computer network, Alice was in low spirits．

Blaming

Blamed

To blame

To be blamed

The more one is _________ the English-speaking environment, the better he or she will learn the language．

exposed to

fined in

caught

kept up

Not until ________ on TV ________ that the Chinese was rescued by the European Union Task Force．

did I turn; did I know

did I turn; I knew

I turned; did I know

I turned; I had know

________ the crisis of economy getting more and more serious, the government is searching for ways to improve people’s life．

As

With

When

If

Each of us is likely to develop a personal ________ for certain types of entertainment．

comparison

possession

preference

advantage

The Chinese economy is still doing well ________ the current financial crisis．

on behalf of

in spite of

in terms of

in consequence of

A team of nurses ________ the doctor in performing the operation on the boy wounded in the earthquake．

supported

encouraged

assisted

respected

Each country, of course, in ________ Copenhagen has its own particular priorities and concerns, which is why ________ agreement is so difficult to reach．

the; an

/; an

a; the

/; the