Tham khảo tài liệu 'fundamentals of english grammar third edition part 44', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | EXERCISE 13. Passive modals. Chart 10-6 Directions Complete the sentences by changing the active modals to passive modals. 1. Someone must send this letter immediately. This letter vaiasP Ve immediately. 2. People should plant tomatoes in the spring. - Tomatoes in the spring. 3. People cannot control the weather. - The weather . 4. Someone had to fix our car before we left for Chicago. - Our car before we left for Chicago. 5. People can reach me at 555-3815. - I at 555-3815. 6. You can find flowers in almost every part of the world. Flowers in almost every part of the world. 7. Someone ought to wash these dirty dishes soon. - These dirty dishes soon. 8. People may cook carrots or eat them raw . - Carrots or raw. 9. If the river floods water could destroy the village. - The village if the river floods. 10. You must keep medicine out of the reach of children. - Medicine out of the reach of children. 11. You shouldn t pronounce the b in lamb. The Passive 289 EXERCISE 14. Active vs. passive. Charts 10-1 - 10-6 Directions Complete the sentences with any appropriate tense. active or passive of the verbs in parentheses. In prehistoric times huge herds of horses live liye throughout the 1 Americas. But then for some unknown reason they disappear 2 completely from North and South America. Even though the early horses die out in the Americas they survive in Asia. 3 4 Long ago horses domesticate by central Asian 5 nomads. At first horses use in war and in hunting and oxen 6 use for farming. Later horses also become 7 8 farm animals. Horses reintroduce into the Americas by 9 Spaniards early in the fifteenth century. Spanish explorers come in 10 ships to the New World with their horses on board. When the explorers return to Spain they leave some of their horses 11 12 behind. These develop into wild herds. Native American 13 tribes in the western plains begin to use horses around 1600. Wild 14 horses capture and tame for 15 16 use in war and in hunting.
