Only after her mother came to help her for the first few months _____ to begin her propjet.
A．was she allowedB．she was allowed
C．did she permitD．she permitted
A

試題分析:句意“直到她母親在前幾個月里來幫助她，她才得以開始她的研究項目。Only+狀語（副詞，狀語從句或者介詞短語）位于句首時，句子用部分倒裝語序，由句意可知此處表示被動，故答案選A。
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