---I’m sorry to have kept you waiting.---Oh, not at all. I here only a few minutes.A have been . B. had beenC., was D. will be
Professor Smith and Professor Brown will _____ in giving the class lectures.
Despite all the evidence to the contrary, the witness _____ that his story was true.
There were no tickets _____ for Friday's performance.
The rocks are very big with _____ of colors on them.
The continuous rain was _____ for the exceptional poor harvest