9.聽第14段材料,回答第15至17 題: 15.What's the boy's first problem? A.He forgets a lot of new words. B.He doesn't get much writing practice. C.He can't get the pronunciation right. 16.What's the girl's advice? A.Watch English-language TV. B.Join an English-language club. C.Ask the teacher for help. 17.What can help the boy a lot to understand the teacher? A.Listening to more tapes. B.Study by working with a group. C.Practicing conversations with friends.