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I made a bet with my friend that if he could learn to ride a bicycle within a month, I would treat him to hot pot.

They bet on who could run faster in the race; the loser would be responsible for cleaning the room for a week.

Don't bet with me on whether it will rain tomorrow; the weather forecast says there's very little chance.

The boss made a bet with the employees that if sales increased by ten percent this month, he would give everyone a bigger bonus.

When I was little, my brother and I bet on who could reach the mountain top first; in the end, we were both panting from exhaustion.