Dùng gợi ý để viết thành câu hoàn chỉnh: I /swim/ before/ work/ now/ after work
1. I/swim/before/work/now/after work.
2. I/buy/cassettes/now/CDs.
3. John/ cycle school/now/not.
4. Mary/eat/fresh fruit/now/tinned fruit.
5. he/watch TV much/now/read/newspapers.