Mr. Brown ... for the first time two years ago. a) registers. b) has registered. c) registered. d) would register. So last year he ... . a) registering. b) didn't register. c) didn't registered. d) was register. His colleages...

Mr. Brown ... for the first time two years ago. a) registers. b) has registered. c) registered. d) would register. So last year he ... . a) registering. b) didn't register. c) didn't registered. d) was register. His colleages also ask Mr. Brown why he has avoided ... for classes. a) register. b) to register. c) registering. d) registered.