________ of the water ________ polluted．We must try to protect our environment．

A．Two third; are

B．Two third; is

C．Two thirds; are

D．Two thirds; is

He is so poor that he has no house ________．

A．to live

B．living

C．living in

D．to live in

The stones are so heavy．How ________ they ________ to the top of the building without moder machines?

A．do; lift

B．did; lift

C．were; lifted

D．were; lift

No free plastic bag in the supermarket helps to ________ white pollution．

A．reduce

B．recycle

C．provide

D．produce

The young man broke his arm in the accident and had to ________ his job．

A．give up

B．put up

C．cut up

D．pick up

You will be late ________ you hurry up．

A．after

B．when

C．unless

D．until

After having a cup of tea, he asked for ________．

A．two more

B．more two

C．more than two

D．two cups

I'll leave ________ Beijing my dad's car．

A．on; in

B．for; on

C．for; in

D．in; in

The question is simple．________ can answer it．

A．Someone

B．Anybody

C．Nobody

D．No one

Don't lose ________ in computer games, boys．

A．yourself

B．yourselves

C．himself

D．themselves