... 1. Danh từ chung: dog, cat, man, woman, country, desk, building, school, sand, table,computer, bread, tree, door, window, book.2. Danh từ riêng: Paris, Peter3. Danh từ trừu tư ng: beauty, ... book.2. Danh từ riêng: Paris, Peter3. Danh từ trừu tư ng: beauty, courage, kindness, fame, air. Danh từ tập thể: team, flock, crowd, family.Đáp án:Friend –> friendship, boy –> boyhood, man ... chapters2. books3. teeth4. echoes5. sons-in-law6. tomatoes7. radios8. feet9. roofs10. loaves Bai 2:1. There is much dirt on the floor.2. We want more fuel than that.3. He drank two glasses...