Although I had the book assigned by the professor several times, it didn't make any __________ to me.
| A．meaning | B．importance |
| C．sense | D．significance |
— When did you first meet Tom?
— On May 2, ____, the first day I came to this city.
| A．or rather | B．at least | C．on the whole | D．in a word |
. The millions of calculations involved, had they been done by hand, _____ all practical value by the time they were finished.
| A．could lose | B．would have lost | C．might lose | D．ought to have lost |
_____ what he can do. He might get a job tomorrow. He might stay out of work for weeks.
| A．We didn’t know | B．He doesn’t know |
| C．There is no knowing | D．It was known that |
Students shouldn’t be given so difficult a problem_________they cannot work out.
| A．that | B．which | C．while | D．As |
Everyone likes_________of the two stories, for this story is _________than that one.
| A．both; not more interesting | B．neither; no more interesting |
| C．neither; not more interesting | D．either; no more interesting |