Scientists study ___________ human brains work to make computer.
| A．when | B．how | C．that | D．whether |
The coal minersin the coal mine for 10 hours before we came to their rescue.
| A．had trapped | B．had been trapping |
| C．had been trapped | D．would have been trapped |
Make full use of your time you can achieve what you desire.
| A．so | B．or | C．but | D．and |
I the wonderful World Cup final of 2010 live on TV, but this summer vacation I missed it.
| A．could have watched | B．might watch |
| C．must have watched | D．need have watched |
tomorrow, we will set sail for Canada.
| A．However the weather is like | B．However is the weather like |
| C．Whatever is the weather like | D．Whatever the weather is like |
—I wonder whom you are waiting for.
—The policeman the traffic accident.
| A．dealt with | B．to deal with | C．will deal with | D．to be dealt with |