Fill in "a", "an", or "the" where necessary.
1) mr jones has 2)....new office. It has 3).... desk,4)..... telephone and 5)..... expensive computer.6)...... Mr Jones is on 7).... phone now and his secretary is at 8)..... computer. 9)..... Mr jones and 10).... his secretary are very busy in 11).... office today.
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