Question

5. He regrets being put to 3 months' imprisonment        a head of the cattle of his neighbour's. (accuse)

他很后悔因被控偷了邻居家的一头牛而被处罚三个月的监禁。

Answer 1

 for having been accused of stealing考查accuse和动名词结构的用法。accuse sb. of doing sth.投诉某人做了某事。regret常和表"因为"之意的介词for连用，for后接动名词。"投诉"在"监禁"之前，且句子的主语是被投诉的承受者，所以，动名词要用完成被动式。