The famous reporter, who is said to have gone back to America last year, _____in China for almost twenty years.
| A．lived | B．was living | C．has lived | D．had lived |
Over the past decades, the sea ice ______ in the Arctic as a result of global warming.
| A．had decreased |
| B．decreased |
| C．has been decreasing |
| D．is decreasing |
Giving up smoking______the risk of heart disease.
| A．reduces |
| B．collect |
| C．increase |
| D．warn |
Further measures will be taken to ______ our streets of crime.
| A．remove |
| B．cut |
| C．reduce |
| D．rid |
As the final exam is coming, my pressure ______, and I’m afraid it will ______ my failure.
| A．builds up; lead to |
| B．comes up; cause to |
| C．turns up; bring about |
| D．makes up; stick to |
You’d better go there by train. The train ticket is ______ the airplane ticket.
| A．as cheap three times as |
| B．as three times cheap |
| C．three times cheaper than |
| D．cheaper three times than |