问题
选择题
_____ the front door _____, he had to enter the room through the back door.
A．Seen; painted
B．Seeing; painted
C．Being seen; being painted
D．Seeing; being painted
答案
答案：D
see 表示的动作与句子谓语动词（had to enter）所表示的动作几乎同时发生，且与其逻辑主语（he）为主动关系，故用一般式。由句意“看到前门正在被漆，……”可知，第二空应用being painted。