通读下面短文，掌握其大意，然后从所给的四个选项中选择最佳的一项。

　　The story happened  1 Tuesday. School  2 over. The students were leaving school  3 a truck was coming round the corner near the school. Suddenly a large bag of rice  4 the truck. It landed in the middle of the road. Some students wanted  5 the bag. Just then a motorbike was coming. He was travelling  6 fast to see the bag. His bike hit the bag and the man fell off his bike. How dangerous!

　　Some students carried him into a room as  7 as possible. Some went round the corner to stop the traffic.  8 moved away the bag. Their teacher Miss Zhao  9 some medicine and looked after the man. At the same time Li Lei telephoned the police. The policemen hurried there a moment later.  10 the help of all of them, luckily the man wasn't hurt badly.

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