_____entering the classroom, remember to take your seat and turn off your cell phone.
#25297
A
At
B
From
C
Upon
D
As
推荐题目
 It’s a good habit to keep everything ________ in your study.
#27156
A
in the way
B
in place
C
in hand
D
in case
_____ what he said, he must have been to the south of the country.
#27734
A
Judge by
B
Judging from
C
Judged with
D
Judging on