)Beijing is one of the ______ in the world today.
---Did you notice someone enter the classroom just now?---Sorry, I didn’t. I _____ my lessons at that time.
_____ this cake, you’ll need 2 eggs, 175g sugar and 175g flour.
This is my book. _____ is over near the window.
He will arrive in Shanghai _____ three hours. Let’s go to meet him.
----How did you get the watch, from a shop or by phone?----_____. I like shopping on the Internet.