选出划线部分发音与其他三项不同的一项。
---How did you work out the difficult chemistry problem? --- I worked it out by ________.
By the time we rushed to the hall, the party ________ for ten minutes.
Jenny ________ some clothes to charity because the children in some poor areas need them.
The singer sang many songs, ________ some of my favorites.
I like the house in ________ I used to live.
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