Раскройте скобки и поставьте глагол в соответствующую временную форму и залог.
1.there (to be) some motormen in the engine room.
2. the electrical engineer (not to repair) the electicity last week
3.they (to check) the tanks tomorrow.
4.the spare parts (to deliver) by them next time.
5.the engine (to break down) yesterday