Uncle Wang taught Jim how the washing machine.A. runB. runningC. to runD. runs

问题补充：

Uncle Wang taught Jim how the washing machine.

A. run

B. running

C. to run

D. runs

答案：

A. run

B. running

(答案→)C. to run

D. runs

解析：根据题干，本句的意思是“王叔叔教吉姆如何运用洗衣机。”根据how可知，后面应该跟动词不定式结构。故应该用to run。所以本题选C。