--- How many of you have solved the math problem?
--- ________, the math problem is far too difficult for us to work out. .
A． All B. None C. Nobody D. Everybody
—Tony, ____you _____ smoking? —Yes. Drinking tea is my favorite now.
A. will; stop B. are; stopped C. would; stop D. have; stopped
Plan your time carefully and make sure you have some time ___ what you like every day.
A. to do B. doing C. do D. done
I won’t go to the concert this evening. I ________ watch the NBA on TV. It’s more exciting.
A. had better B. would rather C. prefer D. have to
Paul isn’t as ______ as Sandy. He often makes mistakes in his homework.
A. careless B. more careless C. careful D. more careful
They will try their best in the Dragon Boat Racing _______ they may fail.
A. if B. though C. until D. when
