—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 controllingB.controlsC.has controlledD.controlled
B

試題分析:考查時態(tài)。在英語中客觀真理都使用一般現(xiàn)在時來表示,句意:—在過去的20年里汽車的價格下降了很多!@不奇怪,因為市場規(guī)律能夠控制一個產(chǎn)品的價格。故B正確。
點(diǎn)評:時態(tài)題的考查關(guān)鍵是抓住句子的上下文含義和句中的時間狀語。要根據(jù)時間狀語來選擇合適的時態(tài),在平時的學(xué)習(xí)中要注意積累有關(guān)時態(tài)的用法和各種時態(tài)的特殊之處。本題表示的就是客觀規(guī)律用一般現(xiàn)在時來表達(dá)。
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