IV: Chia động từ trong ngoặc về thể bị động thì hiện tại đơn để hoàn thành đoạn văn sau: How sugar is made Sugar (1. normally make) .......................... from sugar cane. This kind of plant (2. grow) .......................... in tropical or subtropical areas. In such developed countries as the United States, harvesting of cane (3. do) .......................... mainly by machine. In other areas, this process (4. also do) .......................... by hand. After the cane (5. harvest) .........................., it (6. load) .......................... mechanically into trucks or railroad and (7. take) .......................... to mills. Then it (8. process) .......................... into raw sugar. The cane (9. clean) .......................... by warm water before it (10. break) .......................... by two or three crusher rollers. A large part of the juice (11. extract) .......................... and then (12. purify) .......................... to make sugar crystals. In the next steps, sugar crystals (13. tumble) .......................... through heated air. After they (14. dry) .......................... ' they (15. sort) .......................... by size and (16. place) .......................... in storage bins. Sugar (17. pack) .......................... in the packages like we see in the supermarket . Sugar (18. use) .......................... for various purposes and it is a must-have. item in every kitchen.