How much will the woman pay for these tickets?
A. $10.
B. $20.
C. $30.
【C4】
A. by
B. in
C. at
D. under
【C9】
A. through
B. by
C. in
D. at
Why were there no phone calls before 4?
A. The secretary was ont.
B. The line was out of order.
C. People didn't phone until 4.