问题
We had _______ 8-day holiday during this Nationalholidays, but some of us felt unhappy because of _________heavy traffic on thehighways.
A: an, the
B:a, the
C:a, a
D:an, a
B:a, the
C:a, a
D:an, a
正确答案是：
同类题型
The letters for the boss ________ on his desk but he didn’t read them until three days later.[ ]
Many people are ________ as to what to do when thereis a fire.
The twin brothers look so alike that it is very difficult to tell one from .
Bears live in cold countries, ______ they sometimes live in hot countries, too.