Plants _________carbon dioxide and at the same time _________oxygen. So we may put some in our bedrooms to purify the air.
| A．take in, give out | B．take up, give off |
| C．take over, give in | D．take off, give up |
Sam _______some knowledge of the computer just by watching others working on it.
| A．brought up | B．looked up | C．picked up | D．set up |
A World Without Thieves is ________wonderful film, in which Liu Dehua plays _______part of Whang Bo.
| A．the, a | B．the, the | C．a, a | D．a, the |
The book is very valuable to us. That is to say, The book is of________.
| A．very value | B．great valuable | C．great value | D．much valuable |
-----I am tired of learning English all day long.
------So am I. ____________.
| A．Let’s find some of the action | B．You must be joking |
| C．Up to you | D．It’s totally fascinating |
____you have got a chance, you should make full use of it.
| A．After | B．As soon as | C．Although | D．Now that |