It was quite a serious accident, _________ caused by careless driving.
| A．which I think was | B．I think which was |
| C．which I think it was | D．I think which it was |
________ with care, one tin will last for six weeks.
| A．Use | B．Using | C．Used | D．To use |
— Can I have a day off tomorrow, Mr. Johnson?
— ________. I can manage without you.
| A．Forget it. | B．I’m afraid not. | C．It depends. | D．Of course. |
The newcomer went to the library the other day and searched for ________ he could find about Mark Twain.
| A．wherever | B．whatever | C．however | D．whichever |
—Do you have an_______ way to solve this problem?
—No, this is the only way, I think.
| A．alternative | B．urgent | C．absolute | D．equal |
The article ______ now will appear in tomorrow’s newspaper.
| A．writing | B．to write | C．being written | D．write |