A、 well
B、 better
C、 best
D、 great
答案:B
A、 well
B、 better
C、 best
D、 great
答案:B
A. 3
B. 4
C. 5
D. 6
A. π/4
B. π/2
C. π
D. 2π
A. How far
B. How much
C. How often
D. How soon
A. information
B. experience
C. practice
D. success
A. 0
B. 1
C. 2
D. 3
A. describes
B. improves
C. prepares
D. corrects
A. a
B. an
C. the
D. /
A. need
B. must
C. may
D. has to
A. pick it up
B. put it on
C. give it out
D. take it off
A. is directed
B. was directed
C. directed
D. directs