—Guess, how much does it cost?—I think it costs 15 and 20 dollars.
--_______ does she chat with friends on the Internet? --Once a week.
---Can I borrow some money? ---Sorry, you __________.
Millie goes to the Reading Club _________ a week.
He goes to work by bus, but he walks___________ after work.
The bike is very old, ________ he likes it very much.