Although the educational systems have been       a lot, the loads of the students are still very heavy.
#73677
A
transformed
B
transported
C
transferred
D
transmitted
推荐题目
His mother _____ teacher. 
#83288
A
became
B
has turned
C
came
D
proved
He left school early, and as an adolescent, determined ______  in South American, set off from his home.
#65918
A
having a fortune
B
making his fortune
C
to spend a fortune
D
to make his fortune
I overslept this morning because my alarm clock ______.
#69183
A
didn’t go out
B
didn’t let out
C
didn’t go off
D
didn’t let off