Вставить глагол to be в Present Simple . 1.Which sport dj yju think ............. the most dangerous? Chess and aerobics

1. Which sport do you think is the most dangerous? Chess and aerobics are not as exciting as skydiving and figure skating. 2. What is the weather forecast for tomorrow? 3. Art is long, life is short. 4. You are the best friend I’ve ever had. 5. I don’t remember what his telephone number is. 6. Two heads are better than one.