A、 big
B、 old
C、 small
D、 cheap
答案:D
A、 big
B、 old
C、 small
D、 cheap
答案:D
A. save
B. saving
C. saved
D. to save
A. his
B. her
C. their
D. your
A. going over
B. went over
C. go over
D. to go over
A. polite
B. direct
C. active
D. lively
A. repeat
B. forget
C. receive
D. join
A. damaged
B. were damaged
C. were damaging
D. are damaged
A. 6
B. 7
C. 8
D. 9
A. on
B. beyond
C. in
D. at
A. a
B. the
C. /
D. an
A. π
B. 2π
C. π/2
D. π/4