问题
选择题
Mike has much difficulty ________ Chinese so he often asks me ________ help.
A．to understand, with
B．understanding, of
C．to understand, for
D．understanding, for
答案
答案：D
考查句型。have difficulty in doing sth.做某事有困难,in可以省略。Ask sb for help 请某人帮忙。故选D
点评：注意句型的识记。类似的还有：have trouble/bother in doing sth.做某事有困难