There are many tomatoes in the fridge. You ______________ buy any more.

• mustn't

• shouldn't

It's a hospital. You ______________ smoke.

• musn't

• shouldn't

I ______________ speak Japanese when I was a child and we lived in Tokyo. But after we moved back to Malaysia, I forgot almost everything. Now, I ______________ just say a few words in Japanese.

• can, could

• could, can

The teacher said we ______________ read this book for the Nilam book report.

• may

• might

If you want to learn to speak English very well, you ______________ work hard.

• could

• must

Take an umbrella. It ______________ rain later.

• might

• should

You ______________ leave small objects lying around. These objects ______________ be swallowed by children.

• can't, must

• musn't, can

People ______________ walk on the grass.

• may not

• shouldn't

Drivers ______________ stop when the traffic lights are red.

• must

• might

You ______________ take your umbrella. It is not raining.

• couldn't

• may not