______ average, two-year-old children need ten to twelve hours of sleep a night.
A: With
B: In
C: On
D: Under
A: With
B: In
C: On
D: Under
举一反三
- 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.
- Two groups of people are compared in the third study. They are people______. A: with less than5 hours of sleep a night and with 7 to 9 hours of sleep B: who slept 4 hours a night and who slept 4 hours for 2 nights C: with less than 4 hours of sleep a night and with 7 to 9 hours of sleep D: with less than 5 hours of sleep a night and with 8 hours of sleep
- Sleep: Jerry gets hours of sleep a night. Sometimes he can sleep for a week and then not sleep for two or three or four days.
- How many hours do you need to sleep every night according to the video?
- There are _____ months in a year, October is the _____ month. A: twelve; ten B: twelfth; tenth C: twelve; tenth