I often go to sleep ________10:00 p.m. ________7:00 a.m..
Yang Liwei_____about twenty-one hours in_____around the earth fourteen times.
Everyone is supposed_____a seat belt in the car.
---Can you tell me_____the Bamboom Garden?---The day after tomorrow.
My friend Nancy_____Mark last week.
---What do you think of our plan?---I think it’s reasonable. But_____Bob, what we did is a waste of time.