The passage mainly discusses the factors leading to plastic bag pollution..
查看答案
It is estimated that about one hundred thousand sea animals were killed by discarded plastic bags.
A. Y
B. N
C. NG
听力原文:M: That sweater is so unusual, and yet it looks familiar. Did I just see you wearing it yesterday?
W: Well, not me. But... see, it belongs to my roommate Jill, and she is in your chemistry class.
Q: What does the woman imply?
(13)
A. The style. of woman's sweater can be seen everywhere.
B. The man saw Jill wearing the sweater.
C. She has never worn the sweater before.
D. She seldom borrows Jill's clothes.