–Do you know the man under the tree? --Sorry, I don’t know _______.
--When did you become a volunteer for the elderly?-- Two years ago. I this group since then.
He met many problems he was going over his lessons.
--Where does your uncle work, Tom ?--He is in a hospital he works as a doctor.
In our school library there a number of books on science and the number of them growing larger and larger.
A lot of traffic was kept from going into the city centre the heavy snow?