语法与词汇 15.The oil price rise reactivated the boom in commodity prices and______inflation, which reached an annual rate of 15 percent in the spring of 1974.
【正确答案】 A
【答案解析】本题空格处是说加大了通货膨胀。A项“boost增加，使上升”符合题意，如：to boost prices(提高价格)。其他三项“harness控制，治理；stagger摇晃，蹒跚；embark on着手、从事……”都不正确。