Can you explain the OPEC can have such total control over the price of oil?A. how is it

问题补充：

Can you explain the OPEC can have such total control over the price of oil?

A. how is it that

B. that how

C. how it is that

D. what is it

答案：

A. how is it that

B. that how

(答案→)C. how it is that

D. what is it

解析：考查强调句型。本题是强调句型的特殊疑问句转换成的宾语从句，宾语从句中使用陈述语序。句意：你能解释OPEC组织是如何控制石油的价格的。故C正确。