The number of the red-crowned cranes will become ____ if we don’t take any action.

-- ________ can you finish this English examination?-- In about one and a half hours.

I think the blue shirt looks _____ better on you than the red one.

 — What do you think of KFC?—The food there is very 　　　. In fact, it has 　　　 food in the world.  

----Why are you so _______,Amy?----I thought I lost my purse, but I didn’t. I found it in my study!