问题
选择题
| _____ with the studies of all his students Mr. Johnson went to school as soon as he finished the meeting. |
A. Concerning B. Concerned C. To concern D. Being concerned |
答案
答案：B
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| _____ with the studies of all his students Mr. Johnson went to school as soon as he finished the meeting. |
A. Concerning B. Concerned C. To concern D. Being concerned |
答案：B