The computer looks old, but it _________ just half a year ago.
| A．has been bought | B．was bought | C．is bought | D．will be bought |
—you please write a 3 000word report about this subject for me?
—Perhaps Ionly write a 1 000 word one,but I even doubt it.
| A．Could;might | B．Would;might | C．Might;could | D．Would;could |
Shelly had worked hard for her biology examination so that she could be sure of passing it at her first .
| A．attention | B．purpose | C．attempt | D．desire |
Shortly after the accident,two police were sent to the spot to keep order.
| A．dozen of | B．dozens | C．dozen | D．dozens of |
At a rough estimate,Nigeria is Great Britain.
| A．three times the size as | B．the size three times of |
| C．three times as the size of | D．three time the size of |
There be any difficulty about winning the speech contest now that you’re well prepared for it.
| A．mustn’t | B．shan’t | C．shouldn’t | D．needn’t |