1. I was searching for _____ information on the Internet when suddenly _____ computer system broke down.
A. \; the         B. the; a                C. a; the                D. a; \ 
2. —Are there any _____ on how to take the medicine?
—Yes. They are on the bottle.
A. explanations      B. instructions            C. descriptions           D. introductions
3. With the price rising, $100 a month could hardly _____ the cost of his life in such a big city.
A. cover           B. afford               C. include                  D. contain