After chatting online for along time, Mary looked up, __that it was 11:00 pm, long past her usual bedtime.
I told Sally how to get here, but perhaps I ________ for her.
Jenny ________ have kept her word. I wonder why she changed her mind.
I was really anxious about you. You ________ home without a word.
Tom ought not to ________ me your secret, but he meant no harm.
We ________ last night, but we went to the concert instead.