It was _____the greatest invention I have ever heard.[ ]
Enough sleep is good for health. If you______ for your favorite TV programs, you will feel sleepy.
Look! The clouds are red and orange. They are so beautiful.–Yes. They show it will be sunny tomorrow.
How are you going to the supermarket?—We are going there _____ bike.[ ]
You ______. Don’t talk on the phone.