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thuongpth101
2 năm trước
Viết pt phân tử , ion và ion rút gon Ba(OH)2 + Fe2(SO4)3
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1. In our science class today, Hoa _____ a new idea to save water. * A. sent B. received C. came up with D. transmitted 3. The football match was _____ live on TV now. * A. traveled B. demonstrated C. transmitted D. arranged 4. She had to cook the dinner _____. * A. myself B. himself C. herself D. yourself 5. Come _____ and see the garden! * A. outside B. inside C. insides D. outsides 6. You can see a lot of famous paintings in this _____. * A. service B. invention C. demonstration D. exhibition 7. Many students go to study in the library. We _____ talk in here. * A. mustn't B. don't have to C. shouldn't to D. needn't to 8. It's _____ to let children to play with cellphones for long. * A. safes B. safe C. safely D. unsafe 9. _____ is a thing that you use in the kitchen for storing food. * A. Cooker B. Cook C. Refrigerator D. Counter 10. The sun _____ in the East and _____ in the West. * A. rises - set B. sets - rises C. rises -sets D. set - rise 11. My family _____ from Vietnam to the USA when I was at the age of four. * A. transmitted B. conducted C. immigrated D. emigrated 12. Alexander Graham Bell was born _____ March 3, 1847. * A. in B. D. for 13. Mai loves children. She _____ a teacher when she is old enough. * A. is B. was C. is going to become D. was going 14. I _____ a letter from my friend today. * A. sent B. took C. received D. gave

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