—How difficult physics is! I really want to drop it !
—_________you come on，you will do it better.
A. As long as B. As soon as
C. Though D. While
Of all the teachers I love the ones who are___________ because they treat students as their family members.
A. the strongest B. the friendliest
C. the most experienced D. the funniest
David likes vegetables,__________ tomatoes, potatoes and cabbages.
A. of course B. after all
C. and so on D. such as
—Is David coming by train?
—He should, but he not. He likes driving his car.
A. can B. need
C. must D. may
______ Lin Feng has to work late, she always wears a smile on her face.
A. Because B. If C. Until D. Though
I think it’s good to_________ good things of the world with others.
A. break B. touch C. share
