Find the word which is different from the other three according to the underlined sounds. (找出每组划线部分发音与其他三个不同的单词)
They had a party having classes last Friday.
catch the first bus to the Great Wall, we get up early.
.Some teenagers to do some voluntary work during the school holidays..
How much money did you raise for the poor little boy?
The lady is well-dressed..