學習單：

Oliver says his friend Nancy is very bad at math. Annie encourages Oliver to help his friend without letting her copy his answers. Annie says Nancy must want to improve herself; otherwise his effort will be useless.

The news is straight from the horse’s mouth.
It’s like (I’m) beating a dead horse.
Wild horses couldn’t stop me.
Don’t put the cart before the horse.
You can take a horse to water, but you can’t make him drink.