You must be a writer, _____?

I regret _____ you that Mary was badly injured in theaccident.—I can hardly believe my eyes. She is always socareful.

Are you interested in shopping online—Not so much. We ______ see real products but pictures.

Did you hear about the hero who rescued the child from the burning building?—Yes. What do you think most people ______ if they were in a similar situation?

Listen! Is that Millie singing—No. It _____ be Millie. She has gone to Beijing.