It took ______ building supplies to construct these energy-saving houses. It took brains, too.
Alice, _______ university teacher from Australia, teaches me ______ English in her spare time.
It is morning _____ we have four classes, not afternoon.
In the reading room, we found her _____ at a desk, with her attention ______ on a book.
The day I looked forward to ________ at last.
----How did you find your visit to the museum? ----I enjoyed it. It was ______interesting than I expected.