______is very important for us to learn English well.

I found ___________ hard to remember all the twelve star signs because they are difficult to pronounce(发音) and spell. 

--- Excuse me. Is this ________ dictionary ? --- No. That one belongs to ________. 

-----Wow, my new bike looks the same as ___________.           --------Really.

Look! The students are playing on the playground. Some are running, some are playing basketball, ________ are watching.