_______ many of us today take the television for granted, it’s actually one of the greatest invention of the 20th century.
A. If B. Unless C. While D. Since
_______ the secret of nature, the young scientist has little time for entertainment.
A. Devoted to bring out B. Devoted himself to bringing out
C. Devoted to bringing out D. Devoting to bring out
---I didn’t expect that John would be absent from my last Sunday’s birthday party.
--- As far as I know, he ______ to see his parents in the countryside on Sundays.
A. goes B. went
C. has gone D. had gone
—Who is it up to _____ when the ceremony will be started?
—The headmaster, of course.
A. decide on B. deciding on C. to decide on D. to deciding on
Previous problems or bad experiences with test-taking can be an invitation _____ a worse performance in the next test.
A. with B. in C. beyond D. to
The snowstorm sweeping across California delayed my flight, otherwise I _____ in Hawaii sunbathing on the beach now.
A. would be B. could have been C. will be D. might have been
