摘要： ---- My baby has a heart trouble. ---- Did the doctor find it difficult ? A. in treating B. treating C. for treating D. to treat
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---- My baby has a heart trouble. ---- Did the doctor find it difficult ______ ?
A. in treating B. treating C. for treating D. to treat
查看习题详情和答案>>---- My baby has a heart trouble. ---- Did the doctor find it difficult ______ ?
|
A．in treating |
B．treating |
C．for treating |
D．to treat |
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