Even after I ______ to soil science, I sometimes wondered whether 1 was doing what I wanted to do.

A. reactedB. switchedC. adjustedD. contributed

 

B

【解析】

試題分析：句意：即使在我轉(zhuǎn)想社會科學之后，有時我也會想我是否在做我想做的事。A. reacted反應(yīng)；B. switched（通常指突然地）改變、轉(zhuǎn)換；C. adjusted適應(yīng)；D. contributed有貢獻于。由句意可知選B。

考點: 考查動詞詞義辨析的用法。

 

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