问题
选择题
Mr. Li devoted all his life English. Now he retired.
A．to teach
B．to teaching
C．to be taught
D．to have being taught
答案
答案：B
本题考查动词devote的用法。devote …to 致力于，献身于，短语中的to是介词。本题句意：李先生一生都致力于教英语上，现在他退休了。
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