Johnny, you ________ play with the knife. You ________ hurt yourself.

we can’t remove our troubles in lifeforever, we can leave them behind when we are on vocation.

The USA and some other countries helped the rebels in Libya ____________ their promise to support democracy (民主) and fair trade

Could you please tell me _____— About twenty minutes ago.

I was wondering if we could go skating on the weekend.— _____ good.