My brother ______singing ______ dancing while I _____ dance _____sing.
| A．prefers , to , would rather , than | B．would rather , than , prefer , to |
| C．prefers , than , would rather ,to | D．would rather , to ,prefer , to |
If you keep on, you will succeed ________.
| A．in time | B．at one time | C．at the same time | D．on time |
—________ you__________ the editor at the airport?
—No, when we got there, he___________ driven away.
| A．Have; met; has been | B．Did; meet; had been |
| C．Did; met; have been | D．Have; met; was |
Does the way you thought of___________ water clean make any sense?
| A．making | B．how to make | C．to make | D．having made |
—What do you think of his opinion?
—None has given me ___________ piece of advice.
| A．a better | B．a best | C．the best | D．the better |
It was only with the help of the local guide________________.
| A．was the mountain climber rescued |
| B．that the mountain climber was rescued |
| C．when the mountain climber was rescued |
| D．then the mountain climber was rescued |