Some people argue using ____________ nature to meet our own needs may spell disaster, unless we start to look around and understand how _________ clean environment benefits us all.
#9287
A
/; a
B
the; the
C
the; a
D
a; a
推荐题目
The development of industry has been ____gradual process throughout _____ human existence, from stone tools to modern technology.
#7938
A
不填; the
B
the; a
C
a; 不填
D
a; a
The Japanese have ______ uneasy feeling about ________ increasing use of foreign words.
#9809
A
an; a
B
the; the
C
an; the
D
the; a
John had made up his mind to give it up, but on _________ second thought he determined to have __________ third try.
#8605
A
/ ; /
B
a; a
C
the; a
D
/ ; a
---Hey, Mr. Smith, you are wanted on ___ phone.-----Who is calling?----- ___ Mr. Green. I do not know who he is.
#8938
A
不填; A
B
the; 不填
C
the; A
D
不填; 不填
Because of ______ high demand for Type AB blood, ______ supplies of it are usually limited.
#10475
A
the; the
B
不填; 不填
C
不填; the
D
a; the