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neverbeendied
2 năm trước
Cho m(g) propin vào dd AgNO3 trong NH3 dự thứ được 3,675 kết tủa. Tình giá trị m
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gIÚP MÌNH VỚI NHÉ! THANKS! 1) choose the best answer: 1. The family ....... when the mailman came. A. is sleeping ; B. was sleeping ; C. has slept ; D. have slept 2. I was cooking for dinner......... A. then the phone rang B. then the phone was ringing C. when the phone rang ;D. when the phone was ringing 3.the teacher ........a class at 8 o' clock yesterday evening. A. is having ; B. was having ; C. has ; D. has had 4. .........Twas having dinner, my husband were watching TV. A. As ; B Because ; C. If ; D. While 5. We ..........swimming as soon as we arrived at the island A. were going ; B. would ; C. went ; D. go 6. Yesterday i went to the market and......... some food A. buy ; B. have ; C. buyed ; D. bought 7. What ..........at 3 a.m yesterday? a. would you do ; B. have you done ; C. were you doing ; D. do you do 8. How do you .........about the people living here? A. fell ; B. fall ; C. feel ; D. felt 9. He........ in the pub when his wife ........him A. is sitting/sess ; B. sits/ sees ; C. was sitting/ saw ; D. sat/ saw 10. When i .........home, the sun........ A. left/ shining ; B. left/ shined ; C. was leaving/ shined ; D.left/ was shinning 11. The girl ........when she ........ A. fell/ was running ; B. fall/ running ; C. fall/ run ; D. was falling/ run 12. When the bomb ...........we, ............dinner A. explodes/ had ; B. explodes/ were having ; C. explodes/ wre having ; D. were exploding/ had 13. It .......this afternoon when i .........up A. was snowing/ get ; B. was snowing/ got ; C. snowed/ was getting ; D. snowed/ getting CÁM ƠN CẬU NHIỀU! ^^

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