He and his mother went home happily,only ____that their house had been broken into.A finds B to find C found D having found选c吗?

问题描述:

He and his mother went home happily,only ____that their house had been broken into.
A finds B to find C found D having found选c吗?

B
词组 only to do表示结果,翻译为“不料竟会,没想到会”