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Andrew _____in the USA before he came to Australia.

а)worked b) had worked

I came at four, but Paul ______by that time.

а)had left b) left

I _______the tickets for the musical. Here they are.

а)have bought b) had bought

By 7 o’clock yesterday we ________the two systems.

а)connected b) had connected

When we came in, we saw that somebody _____the Chinese vase.

а)has broken b) had broken

Andrew had worked  in the USA before he came to Australia.

I came at four, but Paul had left by that time.  

I have bought the tickets for the musical. Here they are.

By 7 o’clock yesterday we had connected the two systems.

When we came in, we saw that somebody had broken the Chinese vase.