11. _______ the new medicine for a year and we’ll see how well it works.
A. Try out B. Make out C. Give out D. Pick out
12. The new technology has opened up a very wide _______ of possibilities.
A. extent B. number C. collection D. range
13. He just _______ the headlines because he was too busy to read the whole newspaper.
A. stared at B. looked around C. glared at D. glanced through