问题补充：
The oceans and seas the islands are deep blue and many cities lie a bay.
A. surrounding;in
B. surrounding;on
C. surrounded;in
D. surrounded;on
答案：
A. surrounding;in
(答案→)B. surrounding;on
C. surrounded;in
D. surrounded;on
解析：首先分词短语surrounding the islands作定语修饰前面的名词；lie on the bay表示“在海湾”。
