题目内容
4. There are many passengers al the airport every day.
A.people who are traveling B.people who are eating C.people who are reading D.people who are sleeping
A passenger意为"乘客；旅客"，和people who are traveling 同义。
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题目内容
4. There are many passengers al the airport every day.
A.people who are traveling B.people who are eating C.people who are reading D.people who are sleeping
A passenger意为"乘客；旅客"，和people who are traveling 同义。