问题补充:
She was just about to explain she hadn 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
答案:
A. her mother … when
B. to her mother why … that
C. her mother that … when
(答案→)D. to her mother that … when
解析:explain/ announce等后面的结构是~ sth. to sb.或~ to sb. sth.,to 不可
省略。