A、-1
B、0
C、1
D、 不存在
答案:B
A. How
B. When
C. Before
D. Why
A. -1
B. 0
C. 1
D. 不存在
A. 4
B. 3
C. 2
D. 1
A. to
B. by
C. with
D. in
A. 3
B. 4
C. 5
D. 6
A. 15
B. 16
C. 14
D. 13
A. 0
B. 1
C. -1
D. 不存在
A. is read
B. are read
C. reads
D. were read
A. interesting
B. more interesting
C. the most interesting
D. most interesting
A. in
B. to
C. with
D. at