【題目】After the war, a lot of serious problems ________ and the price of food ________ by 20%.

A. rise; rise B. rose; arose

C. arose; rose D. raised; aroused

【答案】C

【解析】句意；戰(zhàn)后出現(xiàn)了許多嚴(yán)重的問題，食品價格上漲了20%。 rise“上升”；arise“出現(xiàn)”；raise“上升，提高”，為及物動詞。故C項正確。

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