１年 L5 Try it Out

You ( must / must not ) tell this story to anyone. It is a secret.

• must

• must not

It's quite a casual event. You ( have to / don't have to ) wear a tie.

• have to

• don't have to

She looked pale yesterday, so she ( may / may not ) be sick in bed.

• may

• may not

Hello, can we talk now? I'm busy now. ( Can / May ) you call me back later?

• Can

• May

I don't have much time. I ( have to / don't have to ) go home by 6 o'clock.

• have to

• don't have to

( May / Must ) I bring my dog with me? I'm sorry. Pets are not allowed.

• May

• Must

It's windy today. You ( had not better / had better not ) go out.

• had not better

• had better not

I asked him to come many times, but he ( wouldn't / shouldn't ) come.

• wouldn't

• shouldn't

Can you help me? The bottom drawer ( won't / can't ) open.

• won't

• can't

It's ten o'clock now. The train ( should / shouldn't ) come in a minute.

• should

• shouldn't