Whether you believe it or not, it is ________ that causes your illness．

A．because of you overweight

B．because you are overweight

C．you are overweight

D．your being overweight

The take between the two presidents made the way ________ to reaching an agreement．

A．smooth

B．easy

C．accessible

D．available

Many companies didn't ________ what they had promised in their advertise ments．

A．get down it

B．look up to

C．live up to

D．com up with

Cars do cause us some health problems-in fact, far more serious than ________ mobile phones do．

A．one

B．ones

C．it

D．those

She found the room ________ with some old tables, a blackboard and an old stove．

A．furnishing

B．furnished

C．to furnish

D．furnish

If you don't know how to use an English word, the easiest way is to ________ the dictionary．

A．refer

B．look up

C．turn

D．consult

In ________ world of uncertain energy prices, light rail looks like ________ smart choice．

A．the, the

B．/; a

C．a; a

D．a;/

It will cost a lot of time, ________, I think we shall need it and it will certainly be useful to us ________．

A．What's more; sooner or later

B．As a result; now and then

C．At the same time; more or less

D．After all; here an there

Many difficulties have ________ as a result of the changeover to a new type of fuel．

A．risen

B．raised

C．arisen

D．arrived

________ the Internet is bridging the distance between people, it may also be breaking some families or will cause other family problems．

A．When

B．While

C．If

D．Since