_____ you make a promise, you should keep it.
| A．Though | B．Unless | C．Now that | D．Even if |
She understood what I was talking about，________it was the first time we had spoken together.
| A．whether | B．even though |
| C．as though | D．since |
More than one teacher _____ thought highly of the boy.
| A．has | B．have | C．is | D．are |
In any eme rgency, you should always remain _____.
| A．calm | B．silent | C．quiet | D．still |
The number of people who can afford to buy their own houses ________ more than 80%, but a number of houses _________.
| A．are; hasn’t been built | B．are; has built |
| C．is; haven’t been built | D．is; have built |
After dinner George gave Mr. Lee ________ride to________ Beijing Capital International Airport.
| A．the；a | B．a；the | C．/；a | D．/；the |