---What’s the world’s ______ national park?--- It’s Yellowstone National Park in the US.
— Pudong Airport, please. I have to be there by 7:00. — ______________, but I'll do my best.
It is difficult for us to learn a lesson in lifewe’ve in fact had that lesson.
I want to _________ at the meeting, but in the end I _________ nothing.
She got up to get some sleeping pills but found there was _________ left at home.
—He’s never sung French songs before, has he? —___________. It’s his second time to sing in French.