听音，找出句子中含有的单词，将序号写在前面的括号内。（共10分）
（1）A. delicious B. different C. difficult
（2）A．a letter B．an email C．a present
（3）A. reading books B. listening to music C. playing computer
（4）A. Christmas B. Halloween C. Thanksgiving
（5）A. is eating B. is sleeping C. is running
( )（9） ---What about an egg? ---_______________.
A. Thank you.B. It’s nice.C. Yes, please
( )（8） Look at ________ my cap.
A. aB. theC. /
( )（7） ---What would you like? --- ___________.
A. No,thank youB. A hot dog ,please.C. It’s great.
()（6） ---Would you like an egg? --- _________.
A. Yes, I amB. No, I’m not.C. Yes, please.
()（5）This is ______egg and that is _____ hot dog.
A. an, aB. a, aC. an ,an