题目

19. ______side of the street is lied with different shops, ______of which sell electronic products.   A. Both; both       B. Either; all C. Neither; either    D. Either; both 答案：B 解析: 选B。根据句中的is lined with 可知第一空只能填either ，且根据语境可确定第二空填all。根据句意及首字母，完成下列各句 Your mother is w________ about you. Where did you go?