—How can you know so much about the incident?
—It took place only 50 yards from ______ I was standing.
A.which B.that C.where D.what
I _____ for the airport to catch the flight at 6 pm. Please send the file to me within ten minutes.
A.am leaving B.have left C.was leaving D.had left
—Jerry, where did you guys go for the summer vacation?
—We ___ busy with our work, or we would have gone to Brazil to watch the games.
A.were B.have been C.had been D.would be
It is only when you can break free from the past ______ a whole new world can open up to you.
A.that B.which C.where D.when
Henry, it’s your turn. Please ____ the story where we left off before our coffee break.
A.make up B.take up C.bring up D.set up
I am _______ about what I say because careless remarks are likely to hurt others’ feelings.
A.enthusiastic B.concerned
C.doubtful D.cautious
