When it comes to the civil war in Syria, the US government’s attitude towards it has experienced a(n)_______ change , which may have a positive effect on Syria present situation.

ˉWhy did she spend so much time searching shop after shop for a time?ˉ Oh, she was _____ about her clothes.

It is because of its geographical position that typhoon is    in Taiwan during summer.

 In my apartment there are two rooms, _____ is used as a living room.

—What do you think of the book? —It’s ______ a book. It serves as (充当)a really good guide to job hunters.