Answers

2015-01-02T22:09:31+05:30
Well,besides the spelling mistake 'theee' instead of 'three', this sentence seems to be GRAMMATICALLY CORRECT.
Also as had been laughing is the PAST PERFECT CONTINUOUS form of the verb to laugh
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  • Brainly User
2015-01-02T22:17:39+05:30
Had should be changed into has. According to me the sentence should be : He has been laughing for last 3 minutes
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