Question

By the time I locked the door,I realized I ________ my keys at home． [　　] A． had repaired B． have forgotten C． had forgotten D． had left

Answer 1

答案：D
解析：

此句是说“我把钥匙忘在家里了”，表示“遗忘”有两个词——forget和leave，区别是：forget通常不能与表示地点的副词或短语连用，而leave则通常要和表示地点的状语连用。由此处的at home可知应选had left。