Fully ——to teaching,Mr.li has no time to have his hair cut A committed B committing为什么选A
问题描述：
Fully ——to teaching,Mr.li has no time to have his hair cut A committed B committing为什么选A
哪位大侠可以忘我看看这道题：Fully ——to teaching,Mr.li has no time to have his hair cut A committed B committing为什么选A
答
A,固定词组,be committed to ,致力于.,完全投身于.