问题
单项选择题
中国是世界上最早发现和使用煤的国家。据考证，用煤冶铁最早是在（）
A.春秋战国
B.汉代
C.唐代
D.北宋
答案
参考答案：B
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中国是世界上最早发现和使用煤的国家。据考证，用煤冶铁最早是在（）
A.春秋战国
B.汉代
C.唐代
D.北宋
参考答案：B
| 完形填空 | |||
| In the US, when your school doesn't have a bus, and you live too far to walk, you need a carpool (拼车).A carpool is a group of 1 sharing a car to school in the morning. There are 2 four or five kids in their cars. Parents take turns driving the kids in their cars. Teamwork (协作)is really important in the carpool because nobody wants to make 3 late for class. If you sit in the car and wait for a classmate for a long time, you'll probably get a little 4 . Also, your carpool friends might feel the 5 way when you keep them waiting. You learn a great 6 in responsibility(责任)in the carpool before school ever starts. | |||
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