-- The math problem _________ is not difficult.
--- But after several tries , I have to give up _________ on it .
A.it’s , workingB.itself , to workC.itself , workingD.its , to work
C

試題分析:根據(jù)題干,本句的意思是”這道數(shù)學(xué)題本身并不難!暗谝粋(gè)空是做the math problem的同位語(yǔ),故應(yīng)該用itself,表示本身。Give up doing”放棄做某事“,是固定短語(yǔ)。所以本題選C。
點(diǎn)評(píng):做本題時(shí)應(yīng)該注意詞的位置,以此來(lái)確定是否用同位語(yǔ);還應(yīng)注意固定短語(yǔ)的用法。
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