A. Don't climb the wall. B. Don't talk in the library. C. Don't swim here. D. Don't pick flowers here. E. Don't walk on the grass.
1．Xiaoming is talking in the library. （_____） 2．Xiaogang is walking on the grass. （_____） 3．The boy is climbing the wall. （_____） 4．The girl is swimming in a dangerous lake. （_____） 5．Tom is picking(摘) flowers in the park. （_____）
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