What do you think he's been up to?

GeneD

Senior Member
Joined
Mar 18, 2017
Member Type
Student or Learner
Native Language
Russian
Home Country
Belarus
Current Location
Belarus
He looks very guilty. What do you think he's been up to?
The kids are very quiet. Are they up to something?


Does the expression "be up to" mean in this context that someone is doing something that they shouldn't do?
 
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