____ into use in April 2000, the hotline was meant for residents reporting water and heating supply breakdowns.
| A．Put |
| B．Putting |
| C．Having put |
| D．Being put |
The car factory has produced a new car of high quality; its only is that it uses a lot of petrol.
| A．advantage | B．drawback | C．mistake | D．profit |
The government has had to with the opposition party on the new regulation, which will come to effect next month.
| A．negotiate | B．bargain | C．connect | D．associate |
His sacrifices for the country were never officially , which made all of us feel discouraged.
| A．acknowledge | B．appealed | C．recommended | D．evaluated |
Coming to another country to study requires a big adjustment and it usually takes a while to .
| A．fit in | B．calm down | C．keep up | D．get sway |
Before the economic crisis came, John had sensed that the firm was to be ruined and he
just in time.
| A．pulled up | B．pulled out | C．pulled off | D．pulled down |