Chọn đáp án và kèm lời giải thích: 1,If I knew how to repair the machine, I______ you A,help. B, will help. C, would help. D, helped 2,The party was nice,_____? A, isn't it. B, wasn't it. C, doesn't it. D, didn't it 3,Ann and Lan_____ each other for over three years A, know. B, knew. C, have known. D, would know 4, Last week,I took my children to the_____ zoo in town A, bigger. B, more bigger. C, biggest. D, most biggest 5,If I_____ you,I would take some rest before the examination A,are. B, were. C, will be. D, would be Nhớ kèm lời giải thích giúp mình nhé

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