题干
根据汉语意思和提示词,各写一句话,必须用上所有的提示词.
（1）沿着这条路走,在第二个十字路口向左拐。( turn, at )
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（2）许多人在车祸中受伤或丧生。（ lose one's life ）
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（3）同学们现在正在听老师上课吗？（listen to , now）
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（4）David 总是乘火车去看望奶奶。（visit , train）
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答案(点此获取答案解析）
Go along this road and turn left at the second crossing.,Many people get hurt or lose their lives in the traffic accidents.,Are the classmates listening to the teacher now \uff1f,David always goes to visit his grandmother by train.Or : David alway
含铅汽油，其主要原因是
