Must I return the book tomorrow?— No, you ________. You can keep it for three days.

Dad, must we wait until the light becomes green?—Yes, I’m afraid we ______. That’s the traffic rule.

Do you know the moving story of Jack and Rose? —-Of course.Ｉ______ the film Titanic several times.

I saw him crossing the street. The sentence structure is _______.

If this football match can be covered_______, we will know the results in time on TV.