we did a survey of ways of going to school about classi,grade9.here are the results .there are the 50 students in the class. there are 4 ways of going to school. 18 students go to school by bus.10students go to school by bike.12 students go to school by subway.and 10 student go to school on foot.
我滴个乖乖，这个难度不是一般的大！
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