---How foolish I was!
---____ you have realized that, stop blaming yourself.
A. Since B. Unless
C. Although D. Even if
So cruel is the man that he never shows any mercy to ___ is against his opinion.
A. whoever B. whomever
C. who D. no matter who
I would have attended Jacky Cheung's live music concert had it been possible, but I ______ so busy at that time.
A. had been B. were
C. would be D. was
Boys and girls, I have the great ______ introducing our speaker. This is the famous professor of Beijing University.
A. pride B. advance
C. privilege D. insight
To the south of the school was a garden, _______ owner was seated in it playing chess with his little grandson every afternoon.
A. its B. whose
C. which D. that
---Here you are. This is the hotel!
--- It's so close to the station. We ____ the taxi at all!
A. might not have taken B. couldn’t have taken
C. needn't have taken D. mustn't have taken
