I ___to my cousin’s birthday party last night, but I was n..

I ___to my cousin’s birthday party last night, but I was not availableA.wentB.had goneC. would goD.would have gone

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The petrol tank is empty. I _________it up before we left h..

The petrol tank is empty. I _________it up before we left home.A.had to fillB.would have filledC.should have filledD.could have filled

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Doctors strongly recommended that my father ________(take) m..

Doctors strongly recommended that my father ________(take) more exercise regularly instead of sitting still before a computer all day long.

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— What does the notice on the wall say? — “No person _____ ..

— What does the notice on the wall say? — “No person _____ take books out of the reading room; otherwise he _____ be fined.”A.may; willB.may; wouldC.shall; willD.shall; would

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I wrote a letter to John for his help during my high school..

I wrote a letter to John for his help during my high school years,without which I ________ the college entrance exam.A.would failB.would have failedC.should failD.must have failed

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