48. Mr. Buong was successful in his life in spite of coming from a poor family.

Cấu trúc In spite of: Clause + in spite of + V-ing + ....

49. You must keep your life in a safe place 

Cấu trúc: It's essential for somebody + to-V + O -> S + must + V-nt+ O :

50.  Would you mind lending me your pencil?

Cấu trúc:  Would you mind + V-ing

51. Unless you bargain at the market , you won't buy something expensive .

Cấu trúc: Câu ĐK Loại 0: If + S + V(hiện tại đơn) + ...., S + V(tương lai đơn) (Cách khác: Unless + S + V(hiện tại đơn) + ...., S + V(tương lai đơn) 

52. I prefer shopping at the market to going shopping at the open-air market.

Cấu trúc: S + prefer + V-ing + to V-ing (Thích làm gì hơn làm gì)