情态动词 知识点题库

According to the air traffic rules, you ______ switch off your mobile phone before boarding.

Now that you have practiced a lot, there    be any difficulty in performing well.

In today's information age, the loss of data _________ cause serious problems for a company.

— What do you think of the present economic situation?

— When big firms reduce their expenses, we ______ know that times are really hard.

— My sister is very upset today.

— It's your fault. You ________ the bad news to her yesterday.

We can d goods to your door.

My father can't a such a big house, because he is only a worker.

No word can c my thanks to you at the moment.

You      a taxi, for it was only about ten minutes' walk to the park from the school.

I must c sorrow into strength.

The light in his office is out. He must (leave) for home.

—_______ you disturb me now? I'm busy preparing a report.

— Terribly sorry, but I have something urgent to tell you.

It (must have been/must be) raining when you arrived there.

I regret that I waited in the queue for a long time to buy the ticket this morning. I           it online.

Teachers ought be honored.

"You say you ________ do this, but I say, you ________ do it!" said the boss.

One of the few things you ___ say about English people with certainty is that they talk a lot about the weather.

Listen, please. You (may not/might not)  speak during this exam.

you please switch off the radio? The baby is sleeping.

You  give me a lift. I want to walk home for exercise.