He wrote a letter ________ he explained what had happened in the accident.
| A．what | B．which |
| C．where | D．how |
—Have you finished the report?
—Oh，sorry.It was so noisy in the office that I couldn’t________down to write anything.
| A．settle | B．put |
| C．sit | D．lie |
—Jack hurt his leg yesterday.
—Really？________？
| A．What’s wrong with him | B．How did it happen |
| C．Wasn’t he too careless | D．Who told you that |
Generally speaking，the Internet makes________possible for people to get the information they need quickly.
| A．them | B．themselves |
| C．it | D．that |
________you like the portable personal computer so much，why not buy one?
| A．So that | B．Now that |
| C．Even if | D．In case |
He doesn’t plan to go back to his home________he makes a fortune in Hong Kong.
| A．while | B．since |
| C．or | D．until |