Because he works in a remote area, he visits his parents only ______.
A. occasionally B. partly C. practically D. once
–Did you go to the show last night?
–Sorry. No boy and girl in the area invited
A. were B. have been C. has been D. was
— 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
