.—Was _________________ problem solved? —We were trying to think of _________________ way out, but it was difficult to find one.
#9917
A
a; a
B
a; the
C
the; a
D
the; the
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-----Have you seen___ pen? I left it here this morning. -----Is it __black one? I found it in the corner.
#10047
A
a, the
B
the, the
C
a, a
D
the, a
-May I have_____break, mum?Did you have_____ short one an hour ago?
#8401
A
the; the
B
a;/
C
the;／
D
a;a
Many people agree that_______ knowledge of English is a must in ______international trade today.
#9351
A
a; 不填
B
the; an
C
the; the
D
不填; the
The most important thing to keep in ________ mind when dealing with________ emergency is to stay calm.
#7787
A
/; the
B
the; an
C
the; the
D
/; an