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preposition useage problem I am not good at / in / with computer. are they all correct?any difference? Iam always puzzled about which is better. do neccessary focus on these kind of problems?

Answers · 3

1
Since computers are a physical object, use 'with'. "I'm not good with computers." If you're talking about a field of study or a gerund, use 'at'. "I'm not good at computer science." "I'm not good at using computers."
0
at / in <- correct with <- wrong

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