Choose the best word or phrase to complete each sentence. As soon as / Until the contract was signed, everyone cheered. Can you please come to my office when / after the meeting? Larissa said she'd phone as soon as / while she arrives in London. Martin checked the projector carefully when / before he started his presentation, then began right on time. Olga can't sign the contract until / while she gets Andre's approval. Pierre learned to speak some Japanese as soon as / while he was working in Tokyo. Until / After the delivery is confirmed, we won't release the payment. We have to improve the sales forecasts before / after we can approve the project. We went out when / after the meeting to celebrate the merger we'd agreed. When / While I first started out as a manager, I made a lot of mistakes. Yusuf got to know Peter when / as soon as they worked together for three years in Saudi Arabia. Zeynep was able to write the report until / while he was waiting for his plane.