Use Present Perfect.Past perfect of Future Perfect
1.When we came in we saw that somebody (break) the lamp
2.The weather (be) hot recently
3.The man sitting near me was nervous.He never (fly) before
4.He (finish) the translation by 3 o clock tomorrow

1. When we came in we saw that somebody (had broken) the lamp. 2. The weather (has been) hot recently. 3. The man sitting near me was nervous. He had never (flown) before. 4. He (will have finished) the translation by 3 o'clock tomorrow.

1.broke2.was3.flown4.will finish