—What do you think of teaching, Bob?
—I find it fun and challenging. It is a job ______ you are doing something serious but interesting.
| A．where | B．which |
| C．when | D．that |
Admiral (海军上将) Hu Yanlin said that security demands required China to have its own aircraft carrier, and _______ any country had the right to build one.
| A．which | B．that | C．what | D．whether |
. By the middle of August, a national campaign was underway ________ drunken drivers.
| A．dealing with | B．to do with | C．to deal with | D．doing with |
. -- Jack _______ for work in the downtown. What was the matter?
-- _______, but he had no luck.
| A．ought to have hunted; So he was | B．ought to have hunted; So he did |
| C．ought to hunt; So he has | D．ought to hunt; So he did |
What __ public is concerned about is whether the scientists win be able to find _______ cram for the disease.
| A．the; a | B．the; / | C．/; a | D．/; the |
Alice was_________the letter from Tom, but it didn't reach her for some reason.
| A．expecting | B．waiting | C．waiting for | D．expected |