Nếu 2 vòi nước cùng chảy vào 1 bể thì sau 4h48p sẽ đầy bể .Nếu chỉ mở cho mỗi vòi chảy một mình thì vòi thứ nhất chảy chậm hơn vòi thứ 2 là 4h. Hỏi mỗi vòi chảy một mình thì sau bao lâu sẽ đầy bể?

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VẼ ĐẬU MẦM ....................................

IX. Read the passage and choose the correct answer. Well, here I am in Peru on our South America tour. I went on the trip with some best friends of mine. We had a good journey. It took three days by bus, but we saw a lot of things on the way. We didn’t do much for the first two days, as a couple of the other guys were ill. We spent most of the time on the beach. (They are OK now!). On Wednesday, we came up to the mountains, and yesterday we went to the old Inca city of Machu Picchu and did some sightseeing. It was fantastic! We did have a lot of time there, but we saw everything and I took a lot of photos. 1. Where was the author? A. In Peru. B. In Africa. C. In South America. D. A & C are correct 2. The author went there ...................... A. by himself/ herself B. with some friends C. with his/ her best friend D. with his/ her brother 3. The author went there by ...................... A. taxi B. bus C. motorbike D. train 4. What does the word “They” in line 4 mean? A. days B. things C. the guys who are ill D. most of the time 5. What did they do? A. They spent most of the time on the beach. B. They came up to the mountains. C. They went to the old Inca city of Machu Picchu. D. All are correct.

VIII. Read the passage and choose the correct answer. Easter is an important Christian festival and holiday. It is (1) ......................... to celebrate the resurrection of Jesus Christ. People celebrate Easter (2) ......................... the world. In the UK, Easter is a public holiday. People (3) ......................... Easter chocolate eggs to their friends and family. In the US, Easter is a (4) ......................... holiday. People can go to church and have a special family meal. In Russia, Easter is one of the (5) ......................... important holidays. People celebrate it with an Easter breakfast or meal. 1. A. made B. held C. given D. opened 2. A. through B. in C. all D. around 3. A. eat B. have C. give D. receive 4. A. nation B. local C. native D. national 5. A. more B. best C. most D. better

Một thửa đất hình chữ nhật có chiều dài hơn chiều rộng 4mvà có diện tích là 320m2. Tính chu vi thửa đất

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Vẽ cho mình chín con lợn màu hồng đang chạy trên đồng cỏ xanh.

Tìm hộ trọng âm 2.A.useful B.planet C.thoughtless D.return 3.A.atmosphere B.inhabit C.meaningless D.powerful 4.A.valueless B.resourceful C.essential D.surprising 5.A.unsuitable B.emotionless C.uneventful D.informative