Question

—Car prices have been going down sharply in the last 20 years.

—It's not surprising because the law of market ________ the price of a product.

A．is controlling B．controls

C．has controlled D．controlled

 

Answer 1

B

【解析】B 考察动词时态。由语境可知，市场规律控制商品价格，这是一个客观真理，因此应该使用一般现在时。故B正确。