Mrs. Black has three children. One is in Paris, and _______are in another city.
| A．other | B．the other |
| C．the others | D．others |
Mr. Brown has stopped drinking since he ____ on.
| A．will operate | B．will be operated |
| C．operated | D．was operated |
—Must I tell John the bad news now?
—No, you________. He can’t stand it.
| A．must | B．won’t |
| C．needn’t | D．can’t |
The foreigners arrived _________ Beijing late _________ a rainy evening.
| A．at; at | B．in; on |
| C．in; in | D．at; in |
—Would you like to go hiking with us tomorrow?
—Sure, ________ I am busy.
| A．since | B．unless | C．when | D．until |