It is dangerous to play with the knife. You ______ hurt yourself.

He did not regret saying what he did but felt that he _____ it differently.

—You never think of others ! You kept me waiting for two hours.
—I’m sorry that you _________ think so.

It’s said that there are plenty of hotels in Wuyishan. There_______be any difficulty for you to find somewhere to stay.

Parents ____ bring up their children under 16 and educate them properly.

Mr. White _________ at 8:30 for the meeting, but he didn’t show up.

A．should have arrived	B．should arrive
C．shouldn’t have had arrived	D．shouldn’t be arriving

You ______swim in this part of the lake. It’s dangerous.

You ______go and ask Lily . She ______know the answer.

---Who can it be that hasn’t handed in his composition?
---It ______ be Robinson. He ______ it in yesterday.

“Whatever you want, you ____ have it so long as you get the best result,” said the boss.