Mike is good at playing basketball_____Bob does well in football.为什么填while不填when,when为什么不可以?

mike is good at running 同义句 Mike is my classmate.____ is good at physics . Mike is not good at English（改成同义句） Mike is good at making things.改为同义句 Are Tom and Mike （play）of your school football team?I don’t think Jack is（good）at singing tAre Tom and Mike （play）of your school football team?I don’t think Jack is（good）at singing than Marry.He finds it is very（困难）to lear Is your best friend good at play basketball?改错 Is the old man good at ()(play)badminton? Sally is good at ___(play)the violin. My brother is good at填什么(play) basketball. he is good at ---(play) volleyball应该怎么填 jack is good ( )soccer A.AT PLAY B.WITH PIAYING C.FOR PLAY D.AT PIAYING I'm not good at singing.But Mike is good at it.合并句子 Mike is ___ ____singing ___ I am. be good at 的用法可以这样表达吗?she is good at play pingpang. Mike is older than Ton.还有Mike and Tom are in the same class.Mike's parents both work at ahospital.Tom often play football with his father. mike is very good at english,so he often speaks english in p mike explains that pretending to be at the beach is as good as being there mary is good at[ ]the piano A.play b.plays c.playing d.to play He is good at ____basketball A Play B to play C playing