SHOULD/SHOULDN'T

I feel tired and I've got a headache. I think I _______ lie down for a few minutes.

• should

• shouldn't

Henry's got a terrible stomach-ache. He _____ eat any more cakes.

• should

• shouldn't

It's my friend's birthday. I think I _____ phone a to say "happy birthday".

• should

• shouldn't

The old woman wants to cross the street. We ____ help her. Old people need help.

• should

• shouldn't

The party starts at 7PM. You _____ be late.

• should

• shouldn't

His laptop doesn't work well anymore. He has used it for a long time. He _____ buy a new one.

• should

• shouldn't

I can't understand what you said. You _____ speak more slowly.

• should

• shouldn't

That anime is wonderful. I ______ see it.

• must

• mustn't

In Vietnam, most students _______ wear a school uniform.

• must

• mustn't

During the test time, you _____ ask your friends for help.

• must

• mustn't