grammar gk1

They were late for the meeting because they ______ wait for the delayed train yesterday.

We ______ buy tickets in advance because entry to the museum is free on Sundays.

You ______ take photos inside the gallery. It is against the rules.

Children ______ drink too many sugary drinks because they can damage their teeth.

She is coughing a lot. She ______ see a doctor as soon as possible.

On weekends, we ______ wear uniforms. Casual clothes are allowed at our language school.

We have an exam tomorrow, so you ______ spend the evening playing video games.

We ______ wear a helmet when riding a motorbike in Vietnam. It's the law.

Tomorrow is a public holiday, so you ______ wake up early for school.

You look very tired. You ______ take a short rest before continuing your homework.