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vanvu2107
2 năm trước
Sục 2,688 lít CO2 (đktc) vào 180ml dd NaOH 1M. Tính khối lượng muối thu được
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Farm animals supply an estimated thirty percent of all food and agricultural needs. They provide (46) _____ like milk, meat , and eggs. They provide fertilizer to help crops grow. They also help farmers with the farming. They supply us with not only food and labor (47) ____ clothes and tools. There has been concern (48) ____ the loss of many varieties of farm animals as a result of efforts to create new ones. People began to breed animals thousands of years ago. Breeders have looked for animals with high qualities as they expect. Such animals are used to reproduce, so they pass along these qualities to the future (49) ___. Big farms and modern agriculture often depend on only a few kinds of animals which have been bred to (50) ____ the needs of new technology and production methods. 46. A. produce B. production C. products D. productivity 47. A. not B. but also C. also D. nor 48. A. about B. in C. at D. for 49. A. kinds B. sorts C. grades D. generations 50. A. meet B. see C. notice D. look WRITING I. Finish each of the following sentences in such a way that it means the same as the sentence printed before it 1. Ms. Thomson doesn’t want to be called at home unless there is an emergency =>Ms. Thomson minds........ 2. The mechanic said “Don’t press the wrong button again” => The mechanic warned...... 3. This film was last shown on TV nearly 10 years ago => This film has....... 4. Mr. Jones built this program in more than 10 months. =>It……………………………………………………………………………………………………............................. 5. It takes me 30 minutes to go to school. =>How long...... WORD FORM 1.Her husband pumps water into the plot of land while she does the __________. ( transplant ) 2.We are __________ with what we do. ( content ) 3.During my break I often drink tea with my fellow peasants and smoke__________ tobacco. ( locally ) 4.What is Mr. Vy’s _______________ ?(occupational ) 5.Talk about Mr. Vy and Mrs. Tuyet ‘s ________ routines. ( day ) TENSES 1.The traffic was very heavy. By the time I (get) __________to Mary’s party, everyone already (arrive) __________ 2.I will graduate in June. I (see) you in July. By the time I (see) __________ you, I (graduate) __________. 3.I (visit) __________ my uncle’s home many times when I (be) __________ a child. 4.That book (lie) __________ on the table for week. You (not read) __________ it yet? 5.David (wash) __________ his hands. He just (repair) __________ the TV set.

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