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
The rare species which are ____ disappearing should deserve more attention from us human beings.
#25431
A
in place of
B
in search of
C
in memory of
D
in danger of
------The two pairs of shoes are __________ the same colour． ------But they are different __________ colour．
#26201
A
of; from
B
of; in
C
in; from
D
in; in
_____ all the animals I’ve ever had, these two dogs are the most sensitive to the spoken word.
#26405
A
From
B
Of
C
For
D
With
Lately some scientists are experimenting ___________ white mice to ____________ this kind of medicine.
#27470
A
on,try on
B
with, test on
C
on ,test out
D
with,carry out