1. _____ the essay a second time, the hidden meaning will become clearer to you.

A. While reading B. After reading

C. Your having read D. When you read

2. The newspaper’s owner and editor _____ away on holiday.

A. is B. are C. be D. have been

3. 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

答案及解析：

1. D。非謂語動詞做狀語，其邏輯主語是句中主語。The hidden meaning不能執行read的動作，所以排除A、B；C項屬于動名詞獨立主格結構，在句中做主語。故答案為D。

2. A。and連接兩個名詞表示“一副，一雙，一套等或一個人兼兩個職務”，即用一個冠詞或物主代詞限定兩個名詞做主語，謂語用單數形式。故答案為A。

3. D。explain/ announce等后面的結構是～ sth. to sb. 或～ to sb. sth.，to 不可省略。第二個空白處應填when，表示“正當……的時候”。故答案為D。