You must keep us ______ of how things are going here.
#12953
A
informing
B
informed
C
inform
D
to inform
推荐题目
Some students have trouble        grammar while others have difficulty        new words.
#12991
A
in;remember
B
for;to remember
C
on;remembering
D
with;remembering
society
#14168
A
official
B
recent
C
chocolate
D
difficult