题目内容：

Do you understand what I have explained?Have I made myself _______?

优质解答

understood“ have + sth （宾语）+ 过去分词（宾语补足语）”意为“让 / 叫 / 使 / 请别人做某事”.宾语sth 后面用过去分词作宾语补足语,说明sth 与过去分词表示的动作之间是被动关系.例如：We had the machine men...