单句改错 1. Building in 1986,the bridge is over 20 years old. ______________________________ 2. The little girl is very shy, and never speaks until spoke to. ______________________________ 3. He soon fell asleep, exhausting by the journey. _______________________________ 4. Even if invite, I won't go. ______________________________ 5. Though warning by his parents, he still went skating on the thin ice. ____________________________