Even after I ______ to soil science, I sometimes wondered whether 1 was doing what I wanted to do.
A．reactedB．switchedC．a(chǎn)djustedD．contributed
B

試題分析：句意：即使在我轉(zhuǎn)想社會(huì)科學(xué)之后，有時(shí)我也會(huì)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(xiàn)于。由句意可知選B。
考點(diǎn): 考查動(dòng)詞詞義辨析的用法。
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