These examples show that all individuals，__________ they are rich or poor, should be responsible __________ they are involved in law.
| A．if; when |
| B．if; as long as |
| C．whether; as long as |
| D．whether; since |
You'll find it hard to get rid of the drug habit you have it.
| A．before | B．once | C．until | D．though |
He is very smart and can be hidden from him.
| A．nothing | B．something | C．everything | D．anything |
As a result of heavy snow, the high-way has been closed up until further ______.
| A．news | B．notice | C．message | D．knowledge |
There is small temple on the island, which can only be reached by water.
| A．a; 不填 | B．a; the | C．the; the | D．the; 不填 |
—I’d like to make an appointment with Doctor Smith．Would 9:00 tomorrow be all right?
—．Her schedule is full in the morning.
| A．Yes, she’s free then | B．I’m afraid not |
| C．You must be joking | D．Wel1, it depends |