Look at that red bike, it _____ belong to you. I have seen you ride it. –But it ____ be mine. Mine is broken. I am having it repaired.

The plane for Yunnan will______ in two hours. Let’s go to the airport as soon as possible.

The reason Beethoven went away to the country is ______.

Where are my keys, Dad? I can’t find them.—- Look! They’re under the table. You must _____.

I am in great trouble now.— You may depend on ______ that all of us will support you.