单项选择题
Questions 9 to 11 are based on the conversation you have heard.
A.0743,12536 extension 15. B.0734,38750 extension 15. C.0734,21653 extension 51. D.0734,62135 extension 51.
A.They have been hospitalized. B.They have got skin problems. C.They were choked by the thick smoke. D.They were poisoned by the burning chemicals.
A.He is getting too fat. B.He smokes too much C.He doesn’t eat vegetables. D.He doesn’t look well at all.