Mẹ hải được 30 quả cam, con hái được 15 quả cam. Hỏi số cam con hái được bằng bao nhiêu phần trăm số cam mẹ hái?. Giups em, em cho 5 vote ạ!!!!!!!!!!!!!!!!!!!!!!!

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II. Choose the best option A, B, C or D to complete the sentence.(4 points) 5. We suggest __________ these poor children with some new clothes. A. helping B. to help C. helped D. help 6. People have been concerned about saving money and __________ resources. A. naturally B. naturalize C. nature D. natural 7.Teenagers are now _________ dressed. A. fashion B. fashionable C. fashionably D. unfashionable 8. The girl about _________ we are talking is coming. A. who B. whom C. which D. that 9. If anybody _________ a question, please ask me after this class. A. have B. has C. had D. will have 10. I want to watch the weather forecast. Can you turn _________ the TV for me? A. on B. down C. off D. up 11. Classes will be canceled tomorrow _________ it is a national holiday. A. therefore B. because C. but D. because of 12. The men and animals _________ you saw on TV were from Australia. A. that B. whom C. which D. who 13. If you can’t find your place, I ________ you get there with this map. A. will help B. would help C. help D. helped 14. I am fond of travelling. _________, my brother prefers to stay at home. A. But B. Although C. Therefore D. However 15. He stayed up to watch a late movie on TV _________ he would have an exam the next day. A. even though B. but C. and D. so 16.A ________ is a tropical storm that reaches 120 km per hour. A. lightning B. tsunami C. tornado D. typhoon 17. The book ________ is on the table belongs to the teacher. A. which B. that C. who D. A and B 18. Two hundred people died in that volcanic __________. A. erupt B. eruption C. erupted D. erupts 19. – “Let me congratulate you on winning the first prize in the English speaking contest.” – “___________.” A. Well done. B. You’re welcome C. That’s very kind of you D. Good idea 20. Please _______ your shoes before entering a building. A. put off B. take off C. turn off D. go off III. Choose the best option A, B, C or D to complete the passage. (1 point) A powerful earthquake (21) _________ the northeast of Japan at 4 P.M last Monday. Although Japan has the most advanced warning system, there had been no early warning for this one and people were not prepared. Suddenly the ground started (22) _________. The shaking continued (23) _________ a few minutes and became stronger. People began running away from buildings (24) _________ walls started to collapse. 21. A. happened B. struck C. strike D. happen 22. A. moving B. moved C. move D. to moving 23. A. on B. at C. of D. for 24. A. when B. but C. so D. if giúp mik với ạ!!!!!