_______ entering the classroom, remember to take your seat and turn off your cell phone.
#26478
A
At
B
From
C
Upon
D
As
推荐题目
--- I didn’t believe you made such a mistake. ---Oh, I’m sorry. I did it ___________. I’m serious.
#26905
A
on purpose
B
by accident
C
by the way
D
as for
It is amazing that the little boy can swim ________the river ________100 meters in width.
#25840
A
across; measuring
B
over; measured
C
across; measure
D
through; measuring
When he heard the news , he stared at me ________．
#26777
A
in amazement
B
in disguise
C
in brief
D
in particular
As it was almost time for the flight, all the passengers got ______ the plane.
#28463
A
around
B
abroad
C
aboard
D
ahead