Could you please teach me ----the computer?

确实,B C 都ok.
teach sb to do sth.We should teach the children to know good from bad.我们应教育儿童分辨是非.
但根据题意 C更正确些.你能教我检查一下电脑吗?你能教我怎样检查电脑吗?你自己读下,哪个好,我认为它是强调怎样.
出的题有问题.英语题很多都模凌两可.