----- Nội dung dịch tự động từ ảnh ----- 10:13 Th 5 13 thg 1 * 5% ( PLACEMENT TEST 2 Câu 20. O A: They were walked in the forest when they seeing an owl. B: They're walking in the forest when they're seeing an owl. C: They were walking in the forest when they saw an owl. Câu 21. * A: There are enough foods to eat. B: There is enough food to eat. C: here are enough ood to eat. Câu 22. * A: The door bell rang but no-one was at the door. B: The door bell rang but anyone was at the door. C: The door bell rang but everyone was at the door.