Вставьте предлоги, где это нужно. 1. You sent (1) us

Воткните 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.