He was asked to _______the facts just as he remembered them.
| A．set down | B．set out | C．set up | D．set about |
According to news reports personal of guns in the USA causes a lot of trouble．
| A．wealth | B．possession | C．matter | D．problem |
Carbon dioxide from burning fuels is the most common of the so – called greenhouse gases．
| A．producing | B．having been produced |
| C．to be produced | D．produced |
Because of the Russian gas limit to Europe, attempts to use botanical fuel as a source of power．
| A．have made | B．having made |
| C．are being made | D．will be making |
--- Where did you get your laptop? I’d like to get one．
--- Well, at shop on Avenue 48, but I can’t say exactly．
| A．some | B．any | C．each | D．every |
In China, car is becoming popular means of transportation．
| A．a; the | B．a; 不填 | C．the; the | D．the; a |