Помогите , пожалуйста, выполнить задание.

Put the verbs in brackets into the past simple or the past perfect.

1. When I ___(come) home from work I ___(realise) that I ___(forget) to turn off the iron.
2. I ___(want) to do some shopping but when I ___(get) into the car I ___(notice) that I ___(not/put) petrol in the tank.
3. Tom ___(go) for a walk after he ___ (watch) the news.
4. I___(start) working at the National Bank after I ___(graduate) from university.
5. Trania ___(just/mop) the floor when her son___ (spill) milk all over it.