1 The heavy snow prevented the match from starting.
-> prevent ST / SO + from + N/Ving
2 My mother used to be a worker in a factory when she was young.
-> used to + Vinf : đã từng
3 If you practice speaking English every day, you can improve your English.
-> if 1: If + S1 + Vs/es, S2 + will + Vinf
4 Mr. Fatt insists on leaving now.
-> insist on: khăng khăng
5 My mom spent half an hour getting to work by underground every morning last month.
-> It + takes/ took + SO + time + to V = S + spend/ spent + time + Ving