Complete the sentences with the correct particle(s)

1. The employee failed to account [ ] his absence.
2. The bank teller asked me [ ] my identity card.
3. Helen's at the door. Please ask her [ ].
4. Please back [ ] and let me make my own decisions!
5. Don't worry. I'll back you [ ] if you need money.
6. The police are [ ] the bank robbers.
7. He didn't like the plan and was [ ] it.
8. The head teacher will be [ ] for two days next week.
9. He didn't come to work because he is [ ][ ]
   a cold.
10. The mischievous child is [ ] to his tricks again.
11. They couldn't pass [ ] such a great offer.
12. Our car broke [ ] while we were driving to the beach.
13. US scientists are trying to break [ ] the genetic code of the cacao tree.
14. Everything's missing. I think someone must have
    broken [ ].
15. Someone broke [ ] our house last night.
16. We have to break [ ] now because we have no more time.
17. The fire brigade was called as soon as the fire
    broke [ ].
18. The couple broke [ ] after five years of dating.
19. He was disqualified [ ] the competition after he was caught cheating.
20. During the sales period, shops bring [ ]
    prices by as much as 50%.
21. The car manufacturer is bringing [ ] their new model next month.
22. We splashed water on her face to bring her
    [ ] after she'd fainted.
23. After many attempts, we finally brought him
    [ ] to our point of view.
24. It costs a lot of money these days to bring
    [ ] children.
25. This problem calls [ ] drastic measures.