My sister is good at singing than printing选项是BETTER 和 GOOD 答案选GOOD请问不是有THAN 就有比较级么?怎么理解这个句子呢

My sister is good at spoken English.同义句 my sister is good at kids .改句子的错误 My sister is good at painting.(改为同义句)My sister _ _ in painting. My sister is good at singing.（改为同义句） My sister ___ ___ ____singing. my sister is good at singing.同义句转换 my sister _ _ _ singing My sister is good at ___(sing),but she isn't good at ___(dance) i am good at sports .My sister is good at sports ,too.合成一句. my sister is good . maths my sister is good at english对划线部分提问划线部分是english（）（）（）sister good at? My sister isn`t good at maths ——My brother is good at playing the guitar.——___________.A So is my sister B So does my sister C So my sister is D So my sister does 英语连词成句 sister,my,is,piano,the,playing,at,good. My sister is good at singing and dancing.同义句转换是什么? My sister is good at___(skip). My sister is ill.I have to take good care of her at home.改为同义词My sister is ill.I have to ( ) ( ) her ( ). This is my twin sister.Both she and I ( )goThis is my twin sister.Both she and I ( )good at drawing.A.isB.amC.areD.be My sister is good at singing and dancing.同义句转换是My sister does well in singing and dancing 还是My sister is a good singer and dancer 英语翻译I am ( ) ( ) good at English ( ) than my sister.