如何回答這個特殊疑問句

請看這道題，如何回答？

—What made you so worried?

—__________

A. Because I lost my wallet.              B. As I lost my wallet.

C. Losing my wallet.                         D. Lost my wallet.

此題應選C。容易誤選A。

分析：由于問句中的疑問詞what在句中用作主語，所以其相應的答語也應是能用作主語的成分。答案A，B錯誤，因為它們是原因狀語; 答案D錯誤，因為過去分詞不用作主語。

選項C正確，因為動名詞可用作主語。答句其實是一個省略句，補完整為：Losing my wallet made me so worried. 在回答特殊疑問句時，要特別注意其疑問詞的含義以及它在句中的句法功能；反過來，要是根據答語選擇疑問詞，也要注意其對應關系。如：

1. —_________ does he come to see you?

—Once a week.

A. How long             B. How often              C. How soon               D. How much

2. —How long has he lived here?

—________ he was a child.

A. After                    B. Before                   C. Since                      D. When

3. —_________ is the capital of China?

—Beijing is.

A. Where                  B. What                     C. Which                     D. How

答案：1. B 2. C 3. B