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Nowadays, there are many useful things around us. But it's a pity that we don't know the most   (发明...

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to have a great many of    to be a good many of    to have a great many    to be a great many  
a large amount of    a great deal    a good many of    a great many  
desperation    confusion    dilemma    concern  
is in    are in    is out of    are out of  
suggested  left  permitted  increased  
turning . . . on    fixing . . . to    turning . . . to    fixed . . . on  
the; the    / ;/    / ;the    the;/  
a; a    a; /    /; a    /; /  
turning;on  fixing;to   turning;to  fixing;at  
neglecting  ignoring  concerning  regardless  
funny    loose    extreme    official  
suggested  left  permitted  increased  
extend    enlarge    stretch    spread  
serve    servers    is served    are served  
to hope   hoping   expecting   to expect  
limit    lack    need    demand  

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