______I read those words I had no idea what I was going to be and I made more efforts on  writing afterwards.
A．WhenB．UnlessC．UntilD．While
C
本句句意為：直到我讀了這些話，我才知道我將來干什么。些題是not--------until的變式結(jié)構(gòu)。故選C。
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