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What When Where How often
can; can can’t; must can’t; can must; can
needn’t mustn’t wouldn’t won’t
difficult boring interesting fun
playing computer games; going out playing computer games; go out to play computer games; going out play computer games; go out
What games How games How often How many games
Yes，you do Yes，you can No，you can. No，you don’t
computers are very expensive computers can do many things computers are very good to play with computers are very cheap
How long When How much How often
sometimes seldom often usually
Do;plays Do;play Are;play Are;plays
How long When How much How often
play computer games, doing exercise to play computer games, to do exercise play computer games, do exercise playing computer games, do exercise
have been playing play are playing played
How often How far How long How many
Yes, I do. Yes, I can. No, I do. No, I'm not.
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