Tom is from Hong Kong.tSometimes I have some difficulty___what he says
A.understand B.to understand C.understanding D.to understanding
人气：151 ℃ 时间：2019-10-19 15:31:51
解答
C.understanding
have difficulty to do something表示某一次做某事有困难；而have difficulty (in) doing something表示某事要做一直有困难.
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