. Mary was only too ready to help others, seldom, _____, refusing them when they turned to her.
#93936
A
if never
B
if not
C
if any
D
if ever
推荐题目
There is no ____ that 100 years ago animal testing was cruel, but today animals in experiments are very well taken care of.
#92503
A
point
B
wonder
C
use
D
doubt
It is such a good place everybody wants to go and visit it is well known all over the world.
#92029
A
that; that
B
as; as
C
as; that
D
that; as
It was not until she got home ______ Jennifer realized she had lost her keys.
#95163
A
when
B
that
C
where
D
before
Safety in school has been of great concern because of frequent reports about accidents _______ students got injured or killed while in school .
#93689
A
that
B
when
C
in which
D
for which
As middle school students, we _____ the police to keep order.
#94701
A
are used to help
B
used to helping
C
used to help
D
used to be helped