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

My cat would not have bitten the toy fish _______ it was made of rubber.
A. if she has known B. if she should know C. had she known D. if she knew

If you had taken my advice, you _______ in such difficulties.
A. won't be B. hadn't been C. wouldn't be D. wouldn't have been