Have just stumbled over the following question in an English test:
Which of these is/are possible:
- What should we do if there’s a fire?
- What to do if there’s a fire?
- [Company Notice] What to do if fire breaks out?
According to the keys, A and C are possible. Question: what is wrong with B?
The question construction follows the pattern in Sentence 1 - "What should we do if ...?" or "What do we do if ...?"
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.