The boat was sailing north when a terrible storm _______. A. had broken B. broke C. would break D. was breaking
B. => 1 việc đang diễn ra (QKTD) thì 1 việc khác chen vào (QKĐ)
The packages _______ so that it would be easier to carry them. A. are tied in a bundle B. are tied altogether C. were tied in a knot D. were tied together
Only one of our gifted students _______ to participate in the final competition. A. has been chosen B. have been chosen C. were choosing D. chosen
If it _______ for the heavy storm, the accident would not have happened. A. isn’t B. hadn’t been C. were D. weren’t
“You’ll recognize Jenny when you see her. She _______ a red hat.” A. will wear B. will be wearing C. wears D. is wearing
It is blowing so hard. We _______ such a terrible storm. A. have never known B. have never been knowing C. never know D. had never known
If everyone _______, how would we control the traffic? A. could fly B. can fly C. flies D. had flown
Our industrial output _______ from $2 million in 2002 to $4 million this year. A. rises B. has risen C. was rising D. rose
Jane _______ law for four years now at Harvard. A. is studying B. has been studying C. studies D. studied
If she _______ sick, she would have gone out with me to the party. A. hadn’t been B. weren’t C. hasn’t been D. wasn’t
They will stay there for some days if the weather _______ fine. A. would be B. was C. is D. will be
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