by tim Fri Jul 20, 2012 4:24 pm
you should use "suspect" if you suspect that someone or something has done something suspicious. use "are suspicious of" if there isn't a specific suspicious thing that has been done. "lack" is used when there is a complete void rather than a deficiency - "Rutiger lacks resolve" means he has none, whereas "Rutiger is lacking in resolve" means he has less than he should..
Tim Sanders
Manhattan GMAT Instructor
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