it’s you, Jackie! I didn’t think you could behere—A big surprise ,right I _______ for you all theafternoon

This is not___ watch. I think it’s ___watch.

didn’t you go to the cinemayesterday— I ____, but my wife returned from Francethe moment I was leaving.

— You don’t look well. Are you ill?—— No, the exam is coming, and I _____ reading until midnight.

We all know trees play an important role in _______up the air.