Believe it or not, my sister and I are twins. — Oh, you must have had the case _____you were taken for your sister. [ ]

John _______ for London this afternoon and his flight _______ off at 18:20

It’s careless ____ him to make the same mistake. I think it important ____ him to be more careful next time.

Don’t forget to come to our party this evening. —I won’t. I __________ just now.

He ______ his things and left for Shanghai.