—_______ do you have a sports meet at your school?—Once a year. 

Clothing made of man-made fibers has certain advantages over _______ made of natural fibers like cotton, wool or silk.

—You look sad, Kate.  —Yeah, I have made __________mistakes in my report.

—What do you think of the price of the computers at this store?—They are at least equal in price to, if not cheaper than, _____ at any other store.

When he took his gloves off ,  I noticed that       one had his name written inside.