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tuananhks15
2 năm trước
Đốt cháy 2,24 lít khí metan CH4 trong 28 lít không khí tạo ra khí cacbonic và hơi nước .Sau phản ứng chất nào còn dư và dư bao nhiêu mol.Biết các khí đo được dktc,trong không khí oxi chiếm 20% thể tích (hay chiếm 1/5 thể tích không khí)
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Exercise 1: Find one choice that best completes the sentences: 1.John asked me ...................... in English. a. what does this word mean b. what that word means c. what did this word mean d. what that word meant 2. The mother told her son ................ impolitely . a. not behave b. not to behave c. not behaving d. did not behave 3. The guest told the host that ...................... a.I must go now b. he must go now c. he had to go now d. he had to go then 4. The teacher told Joe ................... a. to stop talking b. stop talking c. stops talking d. stopped talking 5. She said she ........................ a. was very tired last night b. was very tired the night before c. had been very tired last night d. had been tired the night before Exercise 2: Rewrite each sentences, using Reported Speech : 1- “I will go to China next year.” Minh said. 2- Lan said, “I like learning English.” 3- Peter said to me, “I will go to the movies with you.” 4- Miss Nga said, “I love these sunflowers.” 5- Tom said to her, “I can’t help to you to do this test.” 6- They said, “We are doing the exercises now.” 7- Daisy’s father said to her, “I will give you a new bike.” 8- They said to him, “It is raining, so we can’t go out for a walk.” 9- Tom said, “I must leave now.” 10- She said, “I won’t buy this car because it is very old.” 11- Ngan told Mai, “ Don’t feed the chickens.” 12- The policeman said, “ Please show me your driving licence.” 13- “Don’t touch this button or you’ll get an electric shock”,the man said to me 14- “ Bring the stick here, Lucy” Hoa said. 15- “ Don’t talk in class” the teacher told us.

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