Would you please ___ our drive around the city?
| A．join | B．join in | C．take active part in | D．take in |
. If only I ________ how to operate an electronic computer as you do.
| A．had known | B．would know |
| C．should know | D．knew |
If he had not gone out in the storm, he ________ alive now.
A will beB. would be
C. would have beenD. is
Without electricity human life ________ quite different today.
| A．is | B．will be |
| C．would have been | D．would be |
My demand is that the information referred to in my report ________ to Mr. Brown without delay.
| A．to be e-mailed | B．e-mailed |
| C．be e-mailed | D．being e-mailed |
Robert wishes that he ________ business instead of history when he was in university.
| A．studies | B．studied |
| C．has studied | D．had studied |