根据句意和所给中文写出句中所缺的单词。 1. First, please_____________(介绍) yourself to us all, OK? 2. Something should be done to protect the _________(环境) in our hometown. 3. After________(检查) the computer, he told me there were no tickets. 4. Smoking will__________(当然) do harm to your health. 5. There will be an exciting football match between China and Japan on ________(频道) 5 tonight.
答案:1. introduce 2. environment 3. checking 4. certainly 5. Channel