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Cho hai giống bò thuần chủng : bò đen, không sừng giao phối với bò vàng,có sừng. F1×F1.xát định kiểu gen kiểu hình ở bò con F2. Biết rằng 2 T^2 trên di truyền phân li độc lập và mõi gen quy định 1 tính trạng
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look, fall, eat, lie, sit, stand, pass 1. Cinderella: When Cinderella danced at the festival, her stepsisters and stepmother didn't recognize her because they thought she at home in the dirt at that moment. 2. Jack and the beanstalk: As Jack the ogre, he took one of the bags of gold under his arm. 3. Snow White: Once upon a time, when the snow from heaven, a queen sat sewing at her window. 4. The fog prince: The next day the princess from her golden plate, when something knocked at the door and a voice called out, "Princess, youngest, open the door for me!" 5. The little red riding hood: When she went to the bed and pulled back the curtains, her grandmother there with her cap pulled down over her face and very strange. 6. Rapunzel: One day the woman at this window when she saw a bed planted with the most beautiful rapunzel.

1.Rewrite each pair of the sentences into a new one,using the words given in brackets. 1.Lan plays the piano very well.She plays the violin very well,too.(both.....and) 2.Trang was tired.Trang didn't want to miss the lesson.(but) 3.The boy climbed the tree.He picked some apples.(and) 4.It will be colder tomorrow.It will be warmer tomorrow.(either...or) 5.The pupils arrived late.The reason was that there was a traffic jam.(because) 2.Rewrite the following sentences: 1.Although Tom was a poor student,he studied very well. In spite of.............................. 2.Mary could not go to school because she was sick. Because of..................................... 3.Although the weather was bad,she went to school on time. Despite......................... 4.My mother told me to go to school although I was sick. In spite of......................... 5.Because there was a big storm.I stayed at home. Because of.......................... 6.Tom was admitted to the university although his grades were bad. Despite.................... 7.Although she has a physical handicap,she has become a successful woman. Despite................ 8.In spite of his good salary,Tom gave up his job. Although................. 9.Though he did not finish the paper,he went to sleep. In spite of........................... 10.In spite of the high prices,my daughter insists on going to the movies. Even though................. 11.Though Nga had poor grades,she was accepted into the university. Despite................ 12.In spite of being beautiful,Lan didn't join in the beaty cotest. Although............. 13.Even though Mr Ba took a taxi,he arrived late for the meeting. Despite................... 14.Even though it was cold,we went swimming. In spite of.................... 15.Though Mr.Brown has a car,he often goes to work by bus. Despite.................... 16.Lan can't buy a new dictionary because she doesn't have enough money. Due to................... 17.Lan was late because she walked all the way to school. Because of................ 18.We were late for school because of the heavy rain. Because it..................

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