A．One hour.B．Three hours.C．Two hours.D．Four hours.
A: One hour.
B: Three hours.
C: Two hours.
D: Four hours.
A: One hour.
B: Three hours.
C: Two hours.
D: Four hours.
举一反三
- A．One hour.B．Two hours.C．Three hours.D．Four hours. A: One hour. B: Two hours. C: Three hours. D: Four hours.
- 3. How many hours of exercise in a week is advised by the speake A: At least two hours. B: At least two and a half hours. C: At least three hours. D: At least three and a half hours.
- 7. How many hours a day of sleep does the doctor recommend? A: Six or seven hours B: Nine or ten hours. C: Four or five hours.
- According the experts, when headset sound reaches 110 decibcls, it can be used at most for ______. A: one hour B: two hours C: half an hour D: three hours
- How many hours does his father work on Saturdays A: Five hours. B: Six hours. C: Seven hours. D: Two hours.