1) That dress cost 500 roubles.
2) By the time he came, I had finished doing my homework.
3) My wallet has been stolen.
4) She'll be driven home by Jack.
5) Where have you been?
6) We have known each other for 3 years.
7) The doorbell rang when I was in the barthroom.
8) His t-shirt is made of cotton
9) Mary gave her room a proper clean out yesterday.
10) She's just had her hair cut.