Beijing was under an “orange” smog alert on Feb. 24, which marks the first time the second-highest warning level of a new system introduced last year________.
| A．has been raised | B．raised |
| C．has risen | D．rose |
The temperature will fall sharply the day after tomorrow when a snowstorm ______to strike Ganzi, where an earthquake happened two days ago.
| A．expects | B．is expected |
| C．has expected | D．will be expected |
I insisted that a doctor immediately.
| A．has been sent for | B．sends for |
| C．will be sent for | D．be sent for |
We all know it will be next June we can really have a rest.
| A．when | B．before |
| C．since | D．until |
—Hi, Bob, are you going to attend tomorrow’s conference?
—Oh, I’m afraid not,invited to.
| A．even if | B．as if | C．if | D．since |
- They were walking around the town a place for the party.
| A．search for | B．in search of |
| C．searching | D．searched for |