Exercise 3

Choose the correct form of the verb...
  1. They will not let you in unless you  [are] a member.
  2. If you  [study] , you will pass the exam without any problems.
  3. Will you help us if we  [have] some troubles?
  4. Let's do it before it  [starts] raining.
  5. When he  [comes] , let me know.
  6. Will you go there if it  [snows] ?
  7. He won't get any money until he  [completes] it.
  8. Call me when you  [have] time.
  9. I will wait until everybody  [comes] .
  10. When I get it, I  [will give] it to you.