After the class was over,Li Ping apologized ________ the teacher ________ his coming late.
#25526
A
for; to
B
because; to
C
to; because
D
to; for
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_______our school’s teaching reform, the studying burdens on us students have already______lighter than before. 
#28987
A
Owing to; turned on
B
Due to; turned over
C
Despite; turned around
D
Thanks to; turned out
 The great changes _______ have taken place _______ carrying out the economic reform in our country.
#25096
A
may not; unless
B
could not; without
C
never; but for
D
would; besides