At one time, she is fine, ________ at another, she is abnormal.
It was necessary to _____ the factory building as the company was doing more and more business.
. I asked the tailor to make a small _____ to my trousers because they were too long.
Because of the strong sun Mrs. William's new dining room curtains _____ from dark blue to gray within a year.
. Jack is good, kind, hard-working and intelligent. _____, I can't speak too highly of him.
Evidence obtained from observation and experiment is often used to _____ a scientific theory.