题目内容
She was just about to explain ___ she hadn't passed her maths test chiefly out of carelessness ___ her uncle came.
A. her mother … when B. to her mother why … that
C. her mother that … when D. to her mother that … when
D
解析:
explain/ announce等后面的结构是~ sth. to sb.或~ to sb. sth.,to 不可省略。
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