Good friends as we are, I still find her difficult to understand ________. 
#27428
A
at one time
B
at a time
C
at times
D
at the time
推荐题目
 There is still so much work to do that a holiday for me this week is ______.
#27133
A
out of the question
B
beyond question
C
without question
D
out of question
The discovery of these tombs is _______ for scholars’ studying the history of the Tang Dynasty.
#27491
A
of very important
B
great importance
C
of great significance
D
great significant