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Ở một loài động vật có vú, cho giao phối giữa P thuần chủng: đực dài lai với cái ngắn . F1 thu được 1 đực dài: 1 cái dài: 1 đực ngắn: 1 cái ngắn. Hãy giải thích kết quả phép lai trên
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PART I: PHONETICS: Choose the word whose underlined parts differ from the other three in pronunciation in each of the following questions. Question 1: A. hobby B. honest C. humor D. hole Question 2: A. deny B. symbol C. terrify D. dynamite Question 3: A. claimed B. warned C. existed D. occurred Question 4: A. maps B. books C. forks D. boys Which word is different? Question 5: A. river B. sea C. lake D. mountain Question 6: A. horse B. rabbit C. fish D. cow Question 7: A. pencils B. letters C. envelops D. stamps PART II: VOCABULARY AND GRAMMAR: Question 8: The book __________ consists of four parts has been translated into French. A. who B. which C. where D. whose Question 9: Peter said he __________ a test the following day. A. had had B. will have C. has had D. would have Question 10: Your mother can speak French fluently, ¬__________? A. can she B. can’t she C. does she D. doesn’t she Question 11: I was born __________ September 10th, 1996. A. on B. in C. at D. of Question 12: Young people enjoy __________ computer games. A. play B. to play C. playing D. played Question 13: This castle __________ in the 17th century. A. build B. built C. is built D. was built Question 14: Nam, together with his friends, _______ anxious to go back to school after Covid 19. A. is B. are C. has D. have Question 15: My sister studied hard, __________ she completed her exam successfully. A. although B. so C. because D. but Question 16: When his parents died, his grandmother __________ him. A. looked into B. looked for C. looked after D. looked up Question 17: Sarah is from the USA. She is ____________. A. America B. American C. America’s D. American’s Question 18: We will become doctors and engineers when we __________ up. A. grow B. grew C. growing D. will grow Question 19: “That’s a nice dress you are wearing!” - “_____________” A. I’m glad you like it B. That’s alright C. That’s nice D. You’re quite right Question 20: He works very __________, so he often gets good marks. A. carelessly B. careful C. hard D. hardly Question 21: Ha Noi is __________ capital of Vietnam. A. a B. an C. the D. this Question 22: Look! The birds __________ in the sky. A. flying B. are flying C. is flying D. fly Question 23: “Thank you for helping me to clean up today.” A. OK, right B. You’re welcome C. No, don’t worry D. Yes, thank you Question 24: How many English lessons ___________ you _________ a week? A. did/have B. do/do C. do/have D. do/has Question 25: At 8 o’clock this morning, he ____________ a piano lesson. A. is having B. was having C. had D. has Question 26: ____________ butter do they need? A. How many B. How much C. How far D. How Question 27: Mary is talking to you. Please listen to ___________. A. her B. him C. she D. he Question 28: Mike ________ for that company for 12 years. He started working there in 1998. A. worked B. have worked C. works D. has worked Question 29: You can use two of these to pick up the food when eating. A. fork B. chopstick C. forks D. chopsticks Question 30: This woman is rich and famous and lives in a castle. A. a king B. a queen C. a prince D. a servant Question 31: You go over this to cross a road or a river. A. a paddy field B. a lake C. a forest D. a bridge Question 32: These animals were like big lizards and become extinct long time ago. A. dinosaurs B. snakes C. tigers D. lions Question 33: This is like a mountain, but it’s smaller. A. a river B. a hill C. a peak D. a lake Question 34: A person whose profession is acting on the stage, in films, or on television. A. a director B. a reporter C. an actor D. a cameraman Question 35: Something you eat in the morning. A. lunch B. breakfast C. dinner D. supper Choose the underlined word or phrase that needs correcting in each of the following questions. Question 36: That is Sally’s dog. It’s name is Muffin. A B C D Question 37: Tim live in an apartment near the school. A B C D Question 38: One of the worst disease mankind has ever faced is cancer. A B C D

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