With more and more farmers moving to cities, an inadequate labor force is ________ becoming a major factor affecting the country's grain output.
#11138
A
automatically
B
occasionally
C
absolutely
D
gradually
推荐题目
This song ____ me of my sweet childhood. 
#12768
A
warns
B
reminds
C
memorizes
D
informs
 The kids seated themselves      to the teacher and listened          with great interest.
#11257
A
closely; close
B
close; closely
C
closely; closely
D
close; close
---Your ceiling requires ________. --- Yes, I’ll have some workers _______ it 
#12235
A
mending; to mend
B
mending; mend
C
to mend; mend
D
to be mended; to mend