It’s not easy _________Mrs White to persuade（劝说）her husband to stop smoking. He never listens toothers.—Really It’s stubborn ____________ him.

Both___ _ and____ _ laughter do harm to your health

she felt quite shy at the party.

is no doubt that ___a goal, one needs not only knowledge but also good personalities.

________ for the terrible accident, as the workers thought, the director felt nervous and was at a loss what to do.[ ]