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(1)? 25tan + 35000kg=...kg 16.23tan + 500kg=...kg 29kg+ 1204g=....g 79kg+ 20360g=...g (2)? Voi nc thu nhat chảy 1.5 giờ dc 50 lit nc Voi nc thu 2 chay 90 phút dc 75 lit nc Hoi voi nc nao chay nhanh hơn?
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I. VOCABULARY: (30 points) Part 1: Circle the letter (A, B, C or D) next to the word or phrase which best completes each sentence. 1. It's a good idea to see your doctor regularly for ................... . A. a revision B. a control C. an investiagation D. a check-up 2. Last year the potato harvest was very disappointing, but this year it looks as though we shall have a better ................... . A. product B. outcome C. amount D. crop 3.When the starter gave the ................... all the competitors in the race began to run round the track. A. signal B. warning C. shot D. show 4.................... from Bill, all the students said they would go A. Except B. Only C. Apart D. Separate 5. The new manager explained to the staff that she hoped to ................... new procedures to save time and money. A. manufacture B. establish C. control D. restore

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