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2 năm trước
Một giá sách có ba ngăn trong đó: Số sách ở ngăn thứ nhất bằng 2/5 số sách ở ngăn thứ hai .Số sách ở ngăn thứ ba bằng 3/4 số sách ngăn thứ nhất. Tìm số sách mỗi ngăn, biết tổng của số sách ba ngăn là 170 quyển/ cứu với nhanh nha cần gấp lém lun><
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MULTIPLE CHOICE 1. Passengers should check in at least one hour before ________. A. departure B. department C. departed D. depart 2. The gift ___________ in blue paper is mine. A. wrap B. wraps C. wrapping D. wrapped 3. When the boat _______ , they fell into the water. A. stop B. dropped C. overturned D. appeared 4. There are many places of interest worth _________ in Viet Nam. A. see B. to see C. seeing D. saw 5. Can we travel across the river in this __________? A. bicycle B. canoe C. truck D. stick 6. The young lady ___________ in front of that shop is Mai’s sister. A. standing B. stood C. stand D. is standing 7. Would you mind not smoking in our office? - _______. A. Yes, thank you B. No, of course not C. Yes, please D. I’d rather you didn’t 8. Donna works in a shop that sells flowers and plants; she’s a ____________. A. baker B. florist C. gardener D. farmer 9. Would you mind _________ I borrowed your dictionary? A. if B. when C. that D. where 10. There is a big, well-known ________ institute in Nha Trang. A. sea B. oceanic C. marine D. ocean 11. My mother decided _________ anywhere this summer. A. don’t go B. not go C. not to go D .not going 12. There are flights daily to Hanoi ______ Monday. A. besides B. in C. for D. except 13. Do you mind ____________ here for just a minute? A. to wait B. waiting C. about waiting D. waited 14. I haven’t seen Peter __________ he got married. A. since B. before C. by D. for 15. A new shopping mall __________ opposite my house next year. A. is built B. will be built C. will build D. has built 16. We finally arrived, at our ___________ late that evening. A. destination B. arrival C. departure D. journey 17 Would you mind if I ________ your car? A. to move B. moving C. moved D. move 18. She cried __________ when she heard the news. A. excited B. excitedly C. excite D. exciting 19. Could you lend me your book? “- ____________.” A. No, thanks B. Sorry, I need it myself C. No, I couldn’t D. Sorry, I don’t know 20. My mother is thinking_____ importing flowers ______ Viet Nam. A. in/ by B. of/ by C. of/ from D. of/ in

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