Choose past simple or past perfect

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Choose past simple or past perfect 1
Choose the past simple or the past perfect tense
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1) We had already eaten when John
|(come) home.
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2) Last year Juan
(pass) all his exams.
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[.]
3) When I
(get) to the airport I discovered I had forgotten my
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passport.
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4) I went to the library, then I
(buy) some milk and went home. Check
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5) I opened my handbag to find that I
|(forget) my credit card.
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6) When we
(arrive) at the station, the train had already left.
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7) We got home to find that someone
(break) into the house.
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8) I opened the fridge to find that someone
(eat) all my
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chocolate.
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9) I had known my husband for three years when we
(get)
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married.
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