Study hard, ________ you won't pass the exam.
A. until
B. and
C. but
D. or
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I'd like to go shopping with you,________I'm too busy today.
A. but
B. and
C. so
D. or
Peter runs ___ in our class.
A. the fast
B. faster
C. fastest
D. most fast
- How are your parents?- They are very ___ , thank you.
A. good
B. kind
C. well
D. happy
Which lesson is _______ , Lesson 1 or Lesson 2?
A. difficult
B. much difficult
C. more difficult
D. the most difficult