She ________ her hairstyle in her hometown before she came to Chongqing for a better job.
A．would changeB．has changedC．changedD．was changing
C
由came可知，她已來重慶了，而改變發(fā)型是在來重慶之前，即過去的過去，按理要用過去完成時，但before已經(jīng)表明緊接著發(fā)生的先后兩個動作，所以也可用一般過去時，所以選C。
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