It wasn’t _______ he took off her mask _______ I recognized he should be a famous film star.
A. when; that B. until; when
C. until; that D. when; then
—Mr Johnson, _______ a second chance, I will finish the task as planned.
— OK, don’t let me down this time.
A. giving B. given C. to give D. give
_______ human beings use it in a wrong way, like we did with nuclear technology, the advancement of science and technology has never led to decline of human development.
A. While B. Unless
C. As long as D. Before
—I’m afraid the project may be several days behind schedule due to bad weather.
—Don’t worry. Three more assistants will be _______ in no time at all.
A. at your convenience B. at your command
C. at your risk D. at your request
Ding Junhui plays _______ Gary Wilson in the semifinal of the 2015 World Snooker China Open in Beijing, April 4, 2015.
A. over B. for C. against D. with
—Mum, Dad ought to stop working?
—Yes, he has a bad headache because he _______ too long.
A. read B. has been reading
C. had read D. is reading
