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is walking; rides walks; is riding walks; rides is walking; is riding
rides; is riding is riding; is riding rides; rides is riding; rides
ride his bike take the subway by a bus on foot
steal stealing stolen be stolen
Tom has lost his bike four days ago Tom has lost his bike for four days Tom lost his bike for four days It’s four days since Tom lost his bike
How far How soon How long How often
Tom’s bike broke down on the way it happened that Tom’s bike hit a car a car knocked Tom off his bike Tom knocked into a tree
never sometimes hardly ever usually
never hardly ever seldom usually
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