This pair of shoes ________ one of the _________ very well.

—When did you buy this computer? It looks so new.—I         it for only a couple of days. My sister bought it for me as a birthday present.

—Look at the girl! Is it Susan?    —No, it __________ be her. She has gone back to her hometown. 

The new iphone 5 costs so________that I don’t think a student can________ it.

I often see the girls ________ in the room. They are very pleased.