Translate the sentences from Russian into English. Поезд приходит завтра в 6. Если я найду эту книгу, я дам ее вам. Тихо!

1. The train is arriving at 6 tomorrow. 2. If I find this book, I\'ll give it to you. 3. Keep silence! I am thinking. 4. He is going to the concert tonight. 5. How long have you been waiting? 6. He has worked for several companies since he graduated from college.