(2013·泰安一中月考)—John has put forward ________ most challenging question for us to answer.—Yes，it really is.I have never heard ________ harder one.
#7889
A
the；/
B
/；the
C
the；the
D
a；a
推荐题目
We can never expect________bluer sky unless we create________less polluted world.
#8706
A
a; a
B
a; the
C
the; a
D
the; the
---What do you remember Alexander Graham Bell as? --- ______ inventor of ______ telephone.
#9573
A
an; /
B
the; a
C
the; the
D
/; the
—I’m going on diet these days.—In my opinion, you should have balanced diet.
#8789
A
a; /
B
a; a
C
/; a
D
the; the
The warmth of ____ coat will mostly be determined by ____ soft of cloth used.
#9466
A
the; a
B
a; the
C
/; the
D
a; a
—Excuse me, sir. You can’t enter ________ office without ________ permission.—But the manager is expecting me.
#7815
A
the; a
B
an; the
C
the; 不填
D
不填；不填