We agreed to meet at 10:00 at the bus stop, but he __________ so far.
The theory he sticks to ______ to be of no use in our studies.
____ that caused him to serve dinner an hour later than usual.
---- Do you know his address? ---- No, I also wish I _____ where he _____.
—John has put forward _______ most challenging question for us to answer. —Yes, it really is. I have never heard _______ harder one.
Though _____, the news brought them much encouragement.