1.She left university two years ago.
=>It is
2.Laurence hasn't seen her sister since she left for Japan
=>Laurence last
3. Lucky has worn that dress since Barbara's wedding
=>The last time Lucky
4. My mother started working at this school 25 years ago
=>My mother has
5.I have never been to this entertainment park before
=>This is
7.I haven't seen him since I was a student
=>I last
6.I haven't heard from him since August
=>The last time
8. The last time I played football was in 1970
=>I haven't
9.We haven't seen Tom since he moved to Bristol
=>We last
10. This is the first time Bob has ever visited Vietnam
=>Bob