“_______hours do you sleep every day ?” “Nine.”

---I am really _______ because I have been studying all day. --- Have a cup of tea and rest, and then you’ll feel better.

--- _______ does he play basketball? --- On the weekend.

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

Beijing is one of the _______ in the world today.