EXERCISE 1 Choose the correct answer . 1 . While I ( was trying , tried , have tried , am trying ) to phone my brother , he ( was walking , walked , has walked , will walk ) into the house . 2 . Mozart ( composes , is composing , has composed , composed ) many operas in his youth . 3 . The book I ( read , reads , was reading , am reading ) at the moment ( was , is , will be , has been ) very interesting . 4 . After Dana ( saves , has saved , is saving , had saved ) up her money , she ( bought , buys , was buying , has bought ) herself an iPod . 5 . We ( hear , have heard , had heard , were hearing ) about the accident before we ( were reading , are reading , read , have read ) about it in the newspaper . 6 . Since he ( starts , starting , started , has started ) working here , he ( makes , is making , has made , made ) many useful suggestions . EXERCISE 2  אל הספר
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