Chọn câu trả lời đúng trong những câu sau về khái niệm chọn giống vật nuôi : A. Giữ những vật nuôi đực tốt để làm giống, phù hợp với mục đích chăn nuôi. B. Căn cứ mục đích chăn nuôi, chọn những con cái tốt để làm giống. C. Căn cứ mục đích chăn nuôi, chọn những vật nuôi đực và cái giữ lại làm giống. D. Chọn những vật nuôi đực và cái tốt giữ lại làm giống

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Part I. Finish each of the following sentences in such a way that it means exactly the same as the sentence printed before it. (10 points) 1.The match couldn’t start because of the heavy snow. ->The heavy snow……………………………………………………………….…. 2. My mother was a worker in a factory when she was young. -> My mother used…………………………………………………………………... 3.You can improve your English by practicing speaking every day. -> If………………………………………………………………………………… 4. “ I really must leave now,” Mr. Fatt said. -> Mr. Fatt insists……………………………………………………………….….. 5. It often took my mom half an hour to get to work by underground every morning last month. -> My mom spent……………………………………………………………………. Part II. Rewrite each of the following sentences so that it means exactly the same as the given one. Using the given word in brackets. Do not change the word. (10 points) 1. I’m not you, but I think you should recycle these plastic carrier bags. (if) ……………………………………………………………………………………………….. 2. Emma came first because she worked hard. (result) ……………………………………………………………………………………………….3. Eating too much sugar can result in health problems. (lead) ………………………………………………………………………………………...…….. 4. All flights had to be cancelled as a result of the pilots’ sudden strike. (so) ………………………………………………………………………………………….…… 5. If I could swim, I would go scuba diving with Terry. (because) ……………………………………………………………………………………………….