1. —There is a story here in the paper about a 110-year-old man.
—My goodness! I can’t imagine ______ that old. (2006.江苏)
A to be B be have been
C being D having been
2. Daddy didn’t mind what we were doing, as long as we were happy, _____ fun. (2005年重庆)
A had B have
C have D having
3. He _____ have completed his work, otherwise, he wouldn’t be enjoying himself by the seaside.
A should B must
C wouldn’t D can’t