.My sweater was $230. Your sweater was $150 (合并为一个句子) Your sweater _is_____ __much ____ _cheaper_____ __than_____ mine
2.Tony left home for the cinema after his mother came home from work . Tony __didn't___leave home for the cinema _until____his mother came home from work (改为同意句)
Your sweater was much chipper than mine .
Tony didn't leave home for the cinema until his mother came home from work
1.your sweater is more expensive than mine
2.firstly then