a. 能 --> can，或者be able to 1) 你能帮我个忙吗？ 2) 你能打开facebook吗？ b. 会 --> know or will 你会说中文吗？ "你会打开facebook吗？" == "Will you open facebook?" c. 可以-->can，跟“能”一样的意思。1)你可以帮我吗？ 2）你可以打开facebook吗？ d. 可能-->possilbe “Facebook? 在中国可能打不开哦！” “啊？这么有名的网站！这怎么可能？”

“a” is the best answer.可能 means possible.“可以”一般用于回答别人询问你的问题。“会”for oral

In the specific sentence you provided, you can only 能 to mean 'able to'. However, in some other cases, you'll have to use 会. e.g. 我儿子会走路了. My son, who is a little child, has learned to walk. 我儿子能走路了. = My son, who suffered from a injury/disease, has recovered and can walk again. BTW: I'd suggest putting "从..." before '打开'. 你 能从blogspot打开别伯克不?

The best answer is A:能 but Answer C is ok , 你 能(会/可以/可能) 打开别伯克从blogspot不? this is not correct ,here is the one I revised :你能从blogspot 里打开另外一个网站吗？ /你可以从blogspot 里打开另外一个网站吗？ A能 means be able to/ you have the capable B 会 same meaning with 能 but it is not suitable in this sentence , C 可以 means you can , can you ? D可能 means might be /may be

“能”应该是最好的了，表示对方有这个能力，只是征求对方的意愿。而“可以”表示对于对方能不能做这件事有疑问。“可能一般不用于征求对方的意见！