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Linda ，make sure the tables ____ before the guests arrive.
A．be setB． setC．a(chǎn)re setD． are setting
C
這題考察時(shí)態(tài)語態(tài),make sure后面一般接一般現(xiàn)在時(shí),而且the tables和set是被動(dòng)關(guān)系.句意是:琳達(dá),確保客人來之前把桌子擺好.選C.
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