Say how much you know/don’t know (Total English, page 9 ex 1-2)

• I know…
  • I’m pretty sure
  • I know it like the back of my hand
  • I know it by heart
  • I know it inside out
  • I’m fairly positive…
  • I’m certain…
• I don’t know….
  •  I haven’t a clue
  • I don’t know off the top of my head
  • I’ve never heard of him
  • I don’t know offhand
  • I know next to nothing about…
  • I haven’t the faintest idea