II. 听对话，选择正确的答案。每段对话读两遍。(每小题1.5分，共15分)
听第一段对话，完成第6小题。
( ) 6 .What does Jenny do to help protect the environment?
A. She reuses plastic bottles.
B. She reuses paper cups.
C .She reuses plastic bags.
听第二段对话，完成第7小题。
( )7. Who has been to Mount Huang twice?
A. Helen. B. Helen’s brother. C. Helen’s father.
