I have never worn a bow tie before. TIME This is the first ......................... a bow tie.
This is the first TIME I have ever worn a bow tie.
It has been two years since I last saw you. SEEN I .......................................... two years.
I haven't SEEN you for two years.
Her singing was so good that she won the contest. ENOUGH She ................................ to win the contest.
She sang well ENOUGH to win the contest.