问题补充：
30. ---you got to know so much about the pop group in America?
---Through the Internet.
A. How was it
B. What was it
C. How was it that
D. What was it that
答案：
A. How was it
B. What was it
(答案→)C. How was it that
D. What was it that
解析：可联系答.案.网客服索取。
