---Why do you keep the windows open on s
题型:选择题
问题:
---Why do you keep the windows open on such a cold day?
---There are so many students here, so we want to keep the air nice and __.
A.cold
B.dry
C.cool
D.clean
---Why do you keep the windows open on such a cold day?
---There are so many students here, so we want to keep the air nice and __.
A.cold
B.dry
C.cool
D.clean