Are they good at PE? 这里用they还是them请说明道理

Are they good at PE? 这里用they还是them请说明道理 What are they good at? what are they good at?怎么回答 They are both good at math.的同义句是什么? They _____ at good price.用have还是are They are good at playing basketball.（转为疑问句） They are good at Maths and Chinese.的同义句 good,they,climbing,are at连词成句 They are good at English同义句两个 they are good at speaking english变一般疑问句 They are at a very good price.(改为同义句) Are they good at ( 用swim的正确形式填空 同义句转换They are good at badmintonThey____badminton_____. and they are very good at swimming in the He says.They are good at English.合并成一句 He said.They are good at English.合并成一句. The boys are good at swimming .They are good ______(swim) Ben is good at PE同义句 MrTu,our PE teacher,is good at