international market, the price of petroleumhas been falling down, which is now _____ it used to be.

I won’t tell the student the answer to the mathproblem until he on it for more thanan hour

You can visit Zhalong Nature Reserve, one of the few places on Earth _____ red-crowned cranes still live.

.Everyone knows that _______ is dangerous to play with fire, but _______ is difficult is to prevent children from playing with fire

It’s based on the idea ____ all people are created equal, ___ is accepted by most people.[ ]