Bài 12: Sử dụng cấu trúc “ used to V” với những động từ cho sẵn để hoàn thành những câu sau. drive ,work , serve ,believe spend , deliver ,be, go 1. People ________________goods in ox carts. 2. There ________________ very few cars in the streets. 3. When I was a kid, I ________________ sailing with my brother. 4. When Mr Smith was young, he ________________ a car without a driving license. 5. Jim ________________ his weekend doing part-time job 6. People ________________ that the Earth was flat. 7. This old man________________as a librarian in the local library. 8. My grandfather________________ as a captain in the army.