I shall never forget those years_____ I spent in the factory with the workers, _____has a great effect on my life.
In Hangzhou, Mr. Black was so struck ______ the beauty of nature that he stayed ________ another night.
It is morning _____ we have four classes, not afternoon.
Mother told Jim to watch the milk until it boiled and then _________ off the gas.
The idea puzzled me so much that I stopped for a few seconds to try to _______.
Three days after Mrs White’s _______ necklace was found, she was _____ it.