Mr. Liu has taught English        he came here.

I told him the news          he came back yesterday.

Usually, we don’t know how important something is        we lose it.

Don’t forget to wash your hands        you have meals.

—Would you like to go for a walk with me, Alan?
—I’d love to,        you don’t want to go alone.

—What shall we do now?
—       it’s raining hard, let’s stay at home.

I don’t like math        it’s difficult for me.

We have math         Friday. It is difficult         interesting.

We should eat many fruits         apples and oranges.

They didn’t go to bed        they finished their homework.