Jumping out of __ airplane at ten thousand feet is quite __ exciting experience.
| A．/, the | B．/, an | C．an, an | D．the, the |
The new secretary is supposed to report to the manager as soon as she _______.
| A．will arrive | B．arrives |
| C．is going to arrive | D．is arriving |
A big crowd gathered _____ him ______.
| A．to hear ; speak | B．hearing ; speaking |
| C．to hear ; speaking | D．hearing ; to speak |
The man and the horse _____ fell into the river were drowned.
| A．Which | B．who | C．that | D．of which |
The question is very important. It really needs _______.
| A．carefully discussing | B．carefully to discuss |
| C．to carefully be discussed | D．being discussed carefully |
Follow the directions on the bottle carefully when _______.
| A．you will take the medicine | B．taking the medicine |
| C．to take the medicine | D．taken the medicine |