Mary enjoys going shopping with her mother on the weekend

`->` Mary is interested in going shopping with her mother on the weekend

`->` Cấu trúc interested in sth : Thích thú ,yêu thích cái gì

The White dress is more expensive than red one

`->` The red dress isn't as expensive as the white dress 

`+` Cấu trúc so sánh as : S+ tobe/n't + as + adj+as+S2

`+` Chiếc váy đỏ không đắt bằng chiếc váy trắng

1. Mary is keen on/fond of/ interested in/... going shopping with her mother on the weekend. 

⇒ Cấu trúc: S + tobe + keen on/fond of/ interested in/... + V-ing = S + enjoy/like/love/... + V-ing 

2. The red dress isn't as expensive as the white one. 

⇒ Cấu trúc viết lại câu so sánh hơn: S1 + tobe + more + Adj + than + S2 = S2 + tobe + not + as + Adj + as + S1.