"he is good at repairing computers "其中“at repairing computers” 在句中做什成分?

He is good at scoring He is good at Chinese. He is good at dancingedsfsefserfwersedfsdrfwerwerwerewrwerewrwerwere he is good at fishing. he is good【】home 填at对吗? 1.He is good at maths(同义词) he is good at (playing) soccer. He is good at English(同义句) He is good at football是什么意思 He is good at _____soccer.空里填什么? he is good at making m___planes He is good at scoring goals He is good at sports是什么意思 He is good at ______(swim) He is good at sports.(同义句) he is good at running?怎么提问 Is he good at math同意句 he is good at music.翻意快啊.