–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.

A．may, can’t

B．must, mustn’t

C．may, mustn’t

D．must, can’t

—Is there any possibility _________ you could pick me up at the airport?

—No problem.

A．when

B．whether

C．that

D．what