There is a new problem involved in the popularity of private cars ____________ road conditions need ____________.
| A．that; to be improved | B．which; to be improved | C．where; improving | D．when; improving |
Gun control is a subject _______ Americans have argued for a long time.
| A．of which | B．with which | C．about which | D．into which |
The moment I got home, I found I ______ my jacket on the playground.
| A．had left | B．left | C．have left | D．was leaving |
I’d like to work with _______ is honest and easy to get on with.
| A．who | B．whomever | C．whoever | D．no matter who |
I won’t tell the student the answer to the math problem until he ________ on it for more than an hour.
| A．has been working | B．will have worked | C．will have been working | D．had worked |
The police are looking into the cause which ________ the sinking of the ship with about 200 passengers aboard.
| A．was resulted in | B．resulted from | C．resulted in | D．was resulted from |