—Are you going to Tom’s birthday party? --- ________. I might have to work.
A. It depends. B. Thank you. C. Sounds great. D. Don’t mention it.
It was a nice meal, _______ a little expensive.
A. though B. whether C. since D. that
Bring the plants into a warm room ________ they will grow quickly.
A. or B. and C. but D. for
It is reported that it is 100 years ______ Qinghua University was founded.
A. when B. before C. after D. since
The boy, as well as his friends, _______ watching TV last night.
A. were B. was C. is D. are
______ is known to all, Taiwan is a part of China.
A. As B. Which C. That D. What