----What beautiful flowers!
----Yeah! They well by my father.
A. look after
B. looked after
C. looking after
D. are looked after
网友回答
A. look after
B. looked after
C. looking after
(答案→)D. are looked after
解析：此题考查一般现在时的被动语态的基本结构是am，is，are+过去分词。此句表示这些漂亮的花被我父亲照看的非常好。