题目内容
________ to his experiment, he didn't notice that autumn had already come.
| A.Devote | B.Devoting |
| C.Devoted | D.To devote |
C
C [be devoted to意为“致力于,献身于……”。]
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题目内容
| A.Devote | B.Devoting |
| C.Devoted | D.To devote |