BÀI TẬP VẬN DỤNG CƠ BẢN:
Bài 6: Viết các câu sau về thể khẳng định (+), phủ dịnh (-) và nghi vấn (?).
1. (+) Susan used to live in Paris.
(-) Susan didn't use to live in Paris.
(?) Did Susan use to live in Paris?
2. (+) They used to commute from New York to London.
(-) They didn't use to commute from New York to London.
(?) Did they use to commute from New York to London.
3. (+) My mother used to teach at the local school.
(-) My mother didn't use to teach at the local school.
(?) Did your mother use to teach at the local school?
4. (+) He used to cry a lot.
(-) He didn't use to cry a lot.
(?) Did he use to cry a lot?
5. (+) Jane used to work for a non-profit organisation.
(-) Jane didn't use to work for a non-profit organisation.
(?) Did Jane use to work for a non-profit organisation?
