<?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="patent">
<item><text>In 1843 Bain filed a ______ for his fax machine.</text></item>
<item><text>Genetically engineered plants can be protected by ______.</text></item>
<item><text>a leading authority on ______ law</text></item>
<item><text>the US ______ Office</text></item>
<item><text>In 1995 he was granted a ______ for his invention.</text></item>
</body>
</batch>

