—Where have you been?— I ______ in the heavy traffic. Otherwise I ______ here earlier.
Not until I began to work ________ how much time I had wasted.
Little ________ about his own safety, though he was in great danger himself.
Not a single song ________ at yesterday’s party.
If the new arrangement doesn’t _____, we’ll go back to the old one.
Only when your identity has been checked, ________.