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The scientists    most of their time     the research. A.devoted; into doing B.devoted; to do  C....

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have been invited    to be invited    being invited    invited  
so are monkeys  no one is left-handed  scientists don't know why  we never use left hands  
though  therefore  too  then  
where   in where   the place where    in which  
a;the  /;the  the;/  the;the  
make    making    made    having made  
invited  to inviting  being invited  inviting  
being proved to be of significance    was proved to be significance    proving to be significant    proved to be significant  
a; the    /; the    the; /    the; the  
a; the    /; the    the; /    the; the  
proved    was proved    turned    tested  
being proved to be of significance    was proved to be significance    proving to be significant    proved to be significant  
inviting    invited    invite    to be invited  
invited    to inviting   being invited    inviting  
To study  Studying  Study  By studying  
rejected    refused    resisted    reduced  
invited                    to invited      being invited                inviting  

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