– that made Mrs. White so upset? – Her son’s making trouble in the school.A. Where was i

问题补充：

– that made Mrs. White so upset?

– Her son’s making trouble in the school.

A. Where was it

B. Why was it

C. How was it

D. What was it

答案：

A. Where was it

B. Why was it

C. How was it

(答案→)D. What was it

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