We understand _______small changes to our land can have a big impact upon our environment __________ as we know is vulnerable enough.
#68445
A
what; which
B
what; where
C
how; where
D
how; which
推荐题目
That fellow hung around for hours and, ______ was worse, kept me from doing my work.
#71843
A
that
B
where
C
as
D
which
Some researchers believe that there is no doubt _______ a cure for AIDS will be found.
#67941
A
which
B
that
C
what
D
whether
The young boy got himself into a dangerous situation_____he might lose control over his sports car.
#73707
A
that
B
which
C
when
D
where
There was ________ time ________ I hated to go to school.
#74350
A
a; that
B
a; when
C
the; that
D
the; when