Ex. 13. study the following phrases and a) translate them into russian, b) recall the sentences in which they are used in the text and c) use them in sentences of your own.

walk along the corridor (the street, etc.); lead to; wait for smb/smth; think of/ about smth; filled with smth; look forward to smth; come up to smb; sit at one’s desk; run back to the hall (room).