Open the brackets and use the correct form of the verb.
1.If he had nobody to look after him, he ….. (to be) lost.
2.She would talk with him if she ….. (to know) French.
3.If you hadn’t eating so much, you …. (to feel) sick.
4.He would have said hello, if he…... (to see) you in the street.
5.I will announce you if the excursion….. (to be) postponed.