Many major cities like New York, London or Paris face problems relating to homelessness,mainly 1 there is a shortage of housing and high rents for property.2 there are many empty properties in these cities, which could be used to alleviate the situation.
2. He has left (to leave) for London, we won't see him for a month.
3. I have read (to read) this story twice; it's very interesting.
4. The weather has changed (to change) greatly; it's so cold now.
5. We have bought (to buy) Granny a nice present for her birthday. We think she will like it.
6. It will be (to be) very warm in Yerevan this week.
7. Where's the picture? I have given (to give) it to Bob.
8. Jane isn't at home now. She has gone (to go) to the playground.
9. They have done (to do) all their work. They are free to play now.
10. Look! Somebody is breaking (to break) the window.