1 . The boy had to give up ________ because of his leg.
A.run | B.runner | C.running | D.to run |
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2 . ________ is of great help to many people.
A.Travel | B.Travelled | C.Travelling | D.To travel |
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3 . Michael and his friends practise football after school every day.
A.play | B.to play | C.playing |
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