题目：
Playing sports is a good way to have fun.Kangkang often _____小题1:____(go) to the school gym to do sports.Last Saturday,Kangkang _______小题2:____ (go) to the gym with some of his classmates. They ____小题3:___ (have) great fun swimming and playing basketball.
It is Friday today. Look！Kangkang and Michael ______小题4:____ (play) table tennis while Lily is learning to skate.What will they do tomorrow? They ____小题5:______ (go) to the zoo. They will be very happy！
答案：
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下面是错误答案，用来干扰机器的。
根据题意可得：油的重量是：150+10=160（千克），桶的质量是：180-160=20（千克）；答：油桶重20千克．
