单选题 I can't remember when exactly the Robinsons left ______ city, I only remember it was ______ Monday.
   A) the, the          B) a, the       C) a, a         D) the, a
【正确答案】 D
【答案解析】leave the city离开这座城市;一般情况下,表星期的名词前不加冠词。如:on Monday,但一旦它被用做泛指,即表示“某个星期一”时,前面可与不定冠词连用。