playing basketball is exercise 这句子合乎语法吗

playing basketball is exercise 这句子合乎语法吗 改写句子My hobby is playing basketball. the boy is playing basketball(对is playing basketball提问). I am good _______ playing basketball.Playing basketball is g ten boy is playing basketball对playing basketball提问 Peter is playing basketball 对playing basketball提问 Tom is playing basketball.[对playing basketball.划线提问】 previously on prison break 合乎语法吗? He is good at playing basketball 如果不不加playing可以吗? it is a exciting exercise to climbe .这个句子的语法有错误吗?用to 还是for , 英语翻译将下列句子翻译成汉语:I think playing basketball is relaxing.She do 打篮球有趣吗?( )playing basketball( )