问题
Lei Feng was a soldier who _____ the people and Chairman Mao used to speak highly of him.
A: devoted himself to serve
B: devoted himself to serving
C: was devoted to serve
D: devoted himself in serving
B: devoted himself to serving
C: was devoted to serve
D: devoted himself in serving
正确答案是：
同类题型
_______youuseyourdictionaryoften,yourspellingwillimprove.
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