I would have met him ______ to the cinema last night.

We ______the luggage for him. His brother did it for him.

If we work hard with a strong will, we _____ overcome any difficulty, however great it is．

一Professor Li, ______the student start at once or wait a while?     一At once.

–I could not start my car this morning due to the cold weather. --No wonder you were late. You ___ have used mine. I was not using all the morning.