Task 2. Choose the appropriate preposition. 1. 1 graduated... this university five years ago. a) of b) from c) off 2. He promised he would be here... an hour. a) after b) in c) for 3. This concert consists... two parts. a) in b) of c) from 4. I must apologize ... disturbing you. a) for b) about c) of 5. You must concentrate... your new business. a) in b) on c) for 6. Will your sister be... home ... this evening? a) in, on b) at, c) at, in