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how can I get to the Water Sports Center when will Mr. Black come back why is Tom late for class where Mr. Green has gone
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hasn’t written doesn’t write won’t write hadn’t written
hasn't written doesn't write won't write hadn't written
could be stuck might stuck might have been stuck must have stuck
hasn't written doesn't write won't write didn't write
how can I get to the Water Sports Center when will Mr. Black come back why is Tom late for class where Mr. Green has gone
replied replied to answer for asked
forget; remind have forgotten to tell forgot; inform forgot; notice
could have might have might have had must have had
could be stuck might stuck might have been stuck must have stuck
could be caught can be caught might have been caught must have caught
could be stuck might stuck might have been stuck must have stuck