They were greatly impressed______the ways buildings were designe

They were greatly impressed______the ways buildings were designed in that city.
A、of
B、in
C、on
D、by
【正确答案】：D
【名师解析】:该句中，impress与the ways buildings were designed构成动宾关系，表示“他们对那个城市建筑的设计方式印象深刻”。在英语中，表示“对……印象深刻”的短语是“be impressed by...”，因此正确答案是D.by。其他选项A.of，B.in，C.on都不符合这个短语的结构和用法。