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tranhattv2
2 năm trước
ở một loài thực vật, alen A quy định thân cao trội hoàn toàn so vs alen a quy định thân thấp, cho cây thân cao P tự thụ phấn, thu đc F1 có tỉ lệ kiểu hình 31 cây thân cao:1 cây thân thấp. Biết ko xảy ra đột biến hãy xác định kiểu gen của P
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VI. Write the questions with “Did…….?”and give the answer with “Yes/ No: Eg:They played soccer yesterday afternoon - Did they play soccer yesterday afternoon? - Yes, they did./ No, they didn’t. 1. He sent a letter to his penpal last week. ........................................................................................................................................... 2. She taught us English last year. ........................................................................................................................................... 3. They did their homework carefully. ........................................................................................................................................... 4. The Robinsons bought a lot of souvenirs. ........................................................................................................................................... 5. Tourist ate seafood at that famous restaurant. ........................................................................................................................................... 6. The teacher gave her students a lot of homeworks. ........................................................................................................................................... 7. His uncle took him to se Cham temple. ........................................................................................................................................... 8. Liz bought a lot of souvenirs. ........................................................................................................................................... 9. They put the fish in a big bag. ........................................................................................................................................... 10. Ba wore the cap with a dolphin on it. ........................................................................................................................................... VII. Supply the correct verb form, positive or negative. 1/ It stopped raining, so I _____ off my raincoat. (take) 2/ The novel wasn’t very interesting. I _____ it very much. (enjoy). 3/ We went to Kate’s house but she _____ at home. (be) 4/ She was in a hurry, so she _____ time to phone you. (have) 5/ The story was very funny but nobody _____ . (laugh) 6/ Tom was very hungry. He _____ like a horse. (eat) 7/ The room was so cold, therefore we _____ well. (sleep) 8/ It was hard work carrying the bags. They _____ very heavy. (be) 9/ The window was open and a bird _____ into the room. (fly) 10/ It was very hot, so I _____ on the air-conditioner. (turn)

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