----Have you seen _____ pen? I left it here this morning.----Is it ____ black one? I think I saw it somewhere.
#9016
A
a, the
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.
#9114
A
不填；the
B
the; a
C
a; 不填
D
a; a
Being able to afford ______ drink would be ______ comfort in those tough times.
#8475
A
the the
B
a a
C
a /
D
/ a
As we all know, surfing_____ Internet has now become _____popular means of obtaining information.
#9622
A
the; the
B
/; the
C
the; a
D
/; /
It’s ________ most beautiful furniture , by which I was struck at the first sight and I determined to take ________ possession of it some day .
#9643
A
the ; ×
B
a ; /
C
a ; the
D
/ ; /
World Wide Web was invented in 1991 by English scientist ,Tim Burners-lee.
#9411
A
\; an
B
The; an
C
The; the
D
A; the