2. 外语
  3. He has difficulty________his homework alone.

He has difficulty________his homework alone.

admin2021-01-22  69
问题 He has difficulty________his homework alone.
选项 A、finish
B、to finish
C、finishing
D、finished
答案C
解析 have difficulty (in) doing sth.意为“做某事有困难”，故选C。
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