题目内容

My father has a computer, but he doesn’t know       to use it.
A. what                     B. how               C. who           
B
疑问词辨析。what 什么； how 怎样； who 谁。句意：我的父亲有一台电脑，但是他不知道怎样用。 根据句子的意思，可知从句中描述的是方式。故选B
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