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redribon2242
2 năm trước
Cho các chất sau CuO, SO2, FeOH3, BaSO4,Na2SO3, NaOH, H2SO4, Cu, Al Từng cặp chất nào tác dụng được với nhau, viết các PTPU đó
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7.he will take the dog out for a walk as soon as he...dinner A.finish B.will finish C.finishes D.shall have finished 8.when I came to mary's house,she....TV. A.watched B.watches C.is watching D.was watching 9.Mike...me one hour ago. A.phoned B.was phoning C.had phoned D. has phoned 10.I...my homework as soon as lan comes here. A.will finish B.will be finishing C.finish D.have finished 11.while peter...football, it rained heavily. A.was playing B.played C.plays D.is playing 12.this evening,we....a party at lan's house. A.didn't have B. are going to have C.have D.had 13.at this time yesterday I....my home wourk while my father...newspaper. A.was doing/were reading B. was doing/read C. was doing/was reading D.did/was reading 14.If it...we...tonight. A.rains/don't go out B. rained/couldn't C.rains/won't go 15.children were talking noisily when their teacher...in. A.comes B. came C.was comning D.come

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