As long as I can remember, _______ I called, my son would answer.
I was really anxious about you. You _______ home without a word.
The number of people invited ___fifty, but a number of them____ absent fordifferent reasons.
They were arguing _____each other _____ the cause of SARS.
-----Hello, come in.. -----Thank you.
A group of soldiers went into the woods _______ the missing pilot.