British scientists have produced _____ they believe is the world’s smallest Christmas card．
#69025
A
which
B
who
C
that
D
what
推荐题目
If we ______ take environmental problems seriously, the earth _______ worse and worse.
#40979
A
don’t; will be
B
won’t; isn’t
C
won’t; is
D
don’t; won’t be
I can never forget the day _______ we worked together and the day ______ we spent together.
#73355
A
when; which
B
which; when
C
what; that
D
on which; when
Hot _______ the night air was, we slept deeply because we were so tired after the long journey.
#67722
A
although
B
however
C
while
D
as
It is a rule in his family that __________ comes home earlier should cook the dinner for the family.
#73522
A
anybody
B
who
C
who that
D
whoever