Eal of detailed research is being performed in this area

?We have a lot of work tomorrow. You _shouldn’t be______________ be late.

?You ____mustn’t___________ tell anyone what I just told you. It’s a secret.

?You ____shouldn’t______ work such long hours or you will be ill.

?Children _ shouldn’t__________ sit in the sun all day. It is not good for their health.

?I ___must______ wash my hair tonight. It is really dirty.

?Advice for you: You ____should____ always go to sleep early the night before an exam.

?John didn't sleep last night. He must_____ be really exhausted today.

?Where is she? She _can’t ____ be at work because her office is closed today.

?Samira has flu. We don't know yet but she _doesn’t____ need to take the whole week off.

?Whose is this coat? It _can’t____ be Paul's. It's too small for him.

?Look at that bird! Maybe it's an eagle or it _might/can/may/could____ be a vulture.

?The exam results will be out soon. It _may/might____ be this week or possibly next week.