--- Have you solved your problem?---I've kept on thinking about that matter ______, but I have no idea yet now. 
#43153
A
at times
B
some time
C
at a time
D
all the time
推荐题目
Mr. Wang is in the office alone.
#43737
A
lonely
B
quietly
C
with somebody
D
without anybody
Does Zhao Ping ___ his father or his mother?
#42353
A
be similar to
B
take out
C
take after
D
take off
  —Excuse me,Miss Smith.  Could you tell me how to improve my spoken English? —OK. The best way is to practice  *
#42332
A
as soon as possible
B
as quickly as possible
C
as much as possible
D
as clear as possible