<?xml version="1.0"?>
<!DOCTYPE BATCH SYSTEM "exercises_oup.dtd"><batch>
<exercise subhead="dragdrop"/>
<media type="none"/><head><title>Sentence Match</title><task>Type in the word missing from the sentences.</task></head>
<body findword="layer">
<item><text>Everything was covered with a fine _____ of dust.</text></item>
<item><text>Mulch with a generous _____ of peat or compost.</text></item>
<item><text>the upper _____s of the earth's atmosphere</text></item>
<item><text>The product is made from a single _____ of plastic.</text></item>
<item><text>They put on thick hats and extra _____s of clothing.</text></item>
</body>
</batch>

