问题
选择题
You can never imagine what great trouble I have had ________the patient who received a serious wound.[ ]
A. to treat
B. treated
C. treat
D. treating
答案
答案：D
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You can never imagine what great trouble I have had ________the patient who received a serious wound.[ ]
A. to treat
B. treated
C. treat
D. treating
答案：D
