We’re planning to send out a thousand invitations_______Expovolunteers.
| A．over | B．in | C．on | D．to |
Look! Several people in the crowd seemed .
| A．to be fighting |
| B．to have fought |
| C．being fought |
| D．having fought |
Do I have to take this medicine? It so terrible.
| A．is tasted |
| B．is tasting |
| C．tastes |
| D．has tasted |
She looked she were ten years younger.
| A．that |
| B．like |
| C．as |
| D．as if |
You’d bettera doctor about your illness.
A consult
B. advise
C. refer to
D. discuss
Scientists thousands of chemicals before they decided on the right one in the end .
| A．tried out |
| B．found out |
| C．worked out |
| D．turned out |