The traditional view is ______ we sleep because our brain is “programmed” to make us do so.
______ what the teacher says if you think it is important.
With winter ____, the weather became colder.
On the hill ________, there used to be an old temple.
A house was ______ between midnight and 5 a.m.. A lot of valuable things were stolen.
-----What do you think of Harry, our new roommate?----- I am not sure, but he is always asking _____questions.