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hahangufa
2 năm trước
Người ta bơm nước vào bể nếu 3 máy thì hết 10 giờ sẽ đầy bể.Nếu thêm 2 máy bơm nữa, hỏi sau bao lâu sẽ đầy bể ( công suất của máy bơm là như nhau)
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Exercise 7: Read and do the tasks below: a) Read and tick True (T) or False (F): My name's Nam . Last saturday , there was a book fair near my school . Phong and I went there . We met a lot of our classmates . First , we visited the bookstall to look at the books . Then we bought some books . I like comics , so I bought Doraemon and Sailor Moon . Phong likes detective stories , so he bought Case Closed and Sherlock Holmes . We also took a lot of photographs with famous writers . Finally , we returned home at half past four in the afternoon . We enjoyed the book fair very much . 1. The book fair was at Nam's school last saturday . T/F 2. They met a lot of teachers at the book fair . T/F 3 Nam likes detective stories. T/F 4 Nam bought two comic books . T/F 5 Finally , they went home at 5:30p.m. b) Answer the questions: 1. Where did Nam and Phong go last Saturday?............................................................................................................. 2. Who did they meet there?.......................................................................................................................................

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