--Has Billy finished his homework today?
--I have no idea. He ______ it this morning.
A. would do B. was doing C. has done D. had done
______ more and more people may turn to the Internet for the latest news, it is unlikely that the newspaper will disappear．
A．When B. Because C. Since D. While
______ strong and powerful China will certainly benefit ______ whole world.
A. A; a B. The; a
C. The; the D. A; the
She refused to follow our advice on the job, _______ it would have a great effect on her career.
A. even though B. as if C. now that D. in case
She said she was unlucky _______ the train, and had to spend another day here.
A. missing B. to have missed
C. to miss D. having missed
Their family business has expanded enormously, while ours, _______, has declined.
A. on the other hand B. in the meanwhile
C. in fact D. in contrast
