Một mảnh đất hình chữ nhật có chu vi 52m chiều dài hơn chiều rộng 4m câu a tính diện tích mảnh đất đó câu b người ta trồng rau trên mảnh đất đó biết rằng mỗi m2 thu hoạch được 4kg rau hỏi thu hoạch được tất cả bao nhiêu kg rau trên mảnh đất đó

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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