A dark cloud is a ________ of thunderstorm.
Helen couldn’t go to France after all. That’s too bad. I’m sure she would have enjoyed it if _____.
He insisted that we all _____ in his office at one o’clock.
I wish that you _____ such a bad headache because I’m sure that you would have enjoyed the concert.
I do not have a job. I would find one but I _____ no time.
I left very early last night, but I wish I _____ so early.