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he found a letter in the letter-box a letter was found in the letter-box a letter was in the letter-box the letter-box had a letter in it
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will visit has visited
is going to visit would visit
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Jim made a lot of mistakes in the report there are plenty of mistakes in the report we found several mistakes in his letter the book is full of mistakes
a; the a; a the; a the; the
be found a letter in the letter-box a letter was found in the letter-box a letter was in the letter-box the letter-box had a letter in it
a; the a; a the; the the; a
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will visit has visited is going to visit would visit
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