Only through constant practice can the ability of using a foreign language be _______. 
#71692
A
earned
B
acquired
C
gained
D
achieved
推荐题目
  The form cannot be signed by anyone ________ yourself.(2011·全国Ⅰ)
#63930
A
rather than
B
other than
C
more than
D
better than
The children were left _____ of a neighbor when they went on holiday.
#67587
A
in the charge
B
in charge
C
under charge
D
at charge