Вставьте предлоги, где это необходимо.
1. You sent … (1) us a bill … (2) the wrong goods. 2. I am interested … (3) purchasing … (4) a large quantity … (5) your Simplex cameras. 3. She arrives half an hour late … (6) work every day. 4. I have not yet received a reply … (7) my letter. 5. It is now over seven months since we placed the above order … (8) you and we are still waiting …(9) the Linton filing cabinets. 6. I am writing in connection … (10) your contract to clean our offices.