PDF chapter test TRY NOW

Complete the following sentences with the verbs provided below: you have to change them into past simple form. There are more verbs than needed.
  
betray convey decay delay destroy display employ let lose portray pray spray
  
1. Our firm  two new clerks yesterday.
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2. The water is  from the well through these pipes.
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3. The documents say that this civilisation  three thousand years ago.
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