单选题 I expected __________ your friend, but my car broke down on the way.

单选题 Is it necessary __________the book at once?

单选题 It is rude __ at a foreign visitor.

单选题 Is ______ important to tell his father everything?

单选题 It _______ me two hours to find your new house.

单选题 I really don't know _______.

单选题 She told me that she had decided __________ again.

单选题 I’m very sorry for being late. It was good ____ you _____ for me.