We can never expect ________ bluer sky unless we create ________ less polluted world.
#7846
A
a；a
B
a；the
C
the；a
D
the；the
推荐题目
He was elected________president of the company，and________news came，in fact，as________surprise.
#7750
A
a；the；/
B
/；the；a
C
a；/；the
D
the；the；a
After series of unsuccessful attempts, he has finally passed driving test.
#9679
A
不填；the
B
a；the
C
the；a
D
不填；a
I hope, first of all, that we shall never lose heart in face of failure.
#7589
A
the; a
B
the; the
C
不填; 不填
D
a; 不填
I’m going to buy a watch as _______ gift to my daughter, ______ one looking nice but not expensive.
#9653
A
a, the
B
a, /
C
the, the
D
/, a
Keeping a diary is ____ good habit, by which you'll make ____ great progress in writing.
#8713
A
a; a
B
a; 不填
C
the; a
D
the; 不填