—Whendidyoutooktheseamazingphotosofwhales?  —Itwaslasts...

問題詳情：

— When did you took these amazing photos of whales?

   — It was last summer vocation _______ my parents and I spent at Botany Bay in Sydney’s south.

   A. that                           B. when                       C. as                            D. while

【回答】

A

知識點：強調句

題型：選擇題