The streets are all dry. It _____ during the night.
| A．must have rained | B．should have rained |
| C．can’t have rained | D．couldn’t rain |
Over 100 passengers lost their lives in the recent air crash, which was a deadly to their families.
| A．defeat | B．challenge | C．barrier | D．blow |
Welcome to my lecture. Hopefully, there are enough seats for each visitor to have .
| A．it | B．ones | C．one | D．that |
An increasing number of aged motorists from driving for health problems.
| A．are being stopped | B．have stopped |
| C．is stopping | D．has been stopped |
According to the judgment, all the illegal income go to the state.
| A．shall | B．may | C．can | D．would |
— What if Mr. Wang is against our project at the meeting?
— He won’t bewe ask for his advice in advance.
| A．though | B．unless | C．if | D．while |