A friend of yours called on you half an hour ago.
I study at Moscow University.
My brother is playing chess with my grandfather.
It is very difficult to play this role.
Why are there so few people in the street?
Do you know where you live?
Don’t worry and go home quietly.
I shall sleep in the open air.
Are you going to leave St Petersburg tomorrow?
I bought this watch yesterday.
I have just had a telephone call from home.
Leave the key at your sister’s, please.
I cannot understand the rule.
I bought a ticket yesterday.