The little boy out of curiosity the toy to see how it worked but couldn’t put it toget

问题补充：

The little boy, out of curiosity, the toy to see how it worked, but couldn’t put it together.

A. took apart

B. broken down

C. burst into

D. knocked off

答案：

(答案→)A. took apart

B. broken down

C. burst into

D. knocked off

解析：小孩因为好奇拆开玩具。take apart: 拆开；break down: （机械等）出故障；burst into: 闯入；爆发； knock off: 停止（工作）。故A项正确。