How many hours do you need to sleep every night according to the video?
举一反三
- How many hours do you spend ____ learning English every day?
- How many hours do you spend ____ learning English every day? A: in B: out C: of D: from
- What is TRUE of human sleep A: Most people need less sleep when grow older. B: Most people need seven and a half hours of sleep every night. C: On average, people in the U. S. today sleep less per night than they used to. D: For most people, less than six hours of sleep on a typical work night is enough.
- How many times do we experience Stage 1 every night? ________ or ________ times
- What do you need to do to make your trip an easy one according to the video?