The children don’t forget what they have learnt.
It stops them from playing video games all day.
Answer: How to attach photo:
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Explanation:
He was very disturbed and angry
A would be the correct answer
It is definitely grammatically correct, but I should say that you shouldn't say fly, or similar words too often otherwise it could become boring. Aside from that, it sounds good.
1 more thing, I'm not sure you'd describe the downside to the wish a 'loop-hole', because a loop-hole doesn't really make too much sense in this idea.
Perhaps the word trick, downside, negative, different result, unfortunate aspect etc.