I think it's well worth ______ our best to learn a second language well.
A. to try B. trying C. try D. tries
The thing that matters is not whether you fail or not, _______whether you try or not.
A. and B. or C. so D. but
_______ Mrs. Zhang ______ Dr. Yang shows great interest in the topic we are talking about. They want to know more about it.
A. Both； and B. Either； or
C. Not only；but also D. Neither； nor
--Did you enjoy the outdoor training yesterday?
-- No, not at all! I was ________ dead after so much hard training.
A. as good as B. as well as
C. so good as D. so well as
-- It’s dangerous to walk across the street carelessly.
--You’re right. We can’t be ________ careful while crossing the street.
A. so B. very C. too D. more
It’s not ______ good suggestion to drive for four hours without _______break.
A. a; a B. a; the
C. the; a D. the; the
