—My son is addicted to drugs. He isn’t hopeless, is he?
—Yes, _____ he mends his ways and starts all over.
| A．if | B．when | C．even if | D．unless |
The teachers in the city demanded that their pay _____ close to the level of civil servants.
| A．should be raised | B．would raise |
| C．would rise | D．should be risen |
It ______ we had stayed together for a couple of weeks _____ I found we had a lot in common.
| A．was until; when | B．was until; that |
| C．wasn’t until; when | D．wasn’t until; that |
---How is everything going on with you in Europe?
---Quite well. Not so smoothly as I hoped_____.
| A．though | B．instead | C．either | D．too |
The billionaire ______ all his possessions to his son when he died.
| A．write down | B．get down | C．handed down | D．turn down |
A fully-grown blue whale _____ 110 feet in height and _____ several tons.
| A．is measured; weighs | B．measures; weighs |
| C．is measured; is weighed | D．measures; is weighed |