It is well known that biology is ______ science about living things.
#7680
A
a
B
the
C
/
D
an
推荐题目
He is ____ diligent pupil, but she is ___ diligent of all.
#10360
A
the most…the most
B
the most…a most
C
a most..the most
D
a most..a most
Obama made _______ history by being elected as ________ first black president of the US.
#8575
A
不填；the
B
a; the
C
a; a
D
the; a
The person in front of me at ＿＿＿checkout was using ＿＿＿card to check out butfound it wasn't working.
#8296
A
不填；a
B
the; a
C
a; the
D
the; the
Mary used to take _______ advantage of the lunch hour to have _______ short sleep in her office.
#8562
A
/; the
B
the; the
C
the; a
D
/; a