根据句意及单词首字母完成单词。 1. It's raining heavily outside. Please take an u_____ . 2. When I left my home, I forgot to say “G_____"to my parents. 3. Tom looked t_____his paper before he handed it in. 4. We use the e_____to go up and down the building. 5. You can buy books in the b_____ . |