Question

【题目】The boy cried because he broke his toy car __________ accident.

Answer 1

【答案】by

【解析】

句意：那男孩哭了，因为他不小心把玩具车弄坏了。

根据“The boy cried because he broke his toy car”可知是不小心，偶然，意外，这里用by accident偶然，意外。根据题意，故答案为by。