They were at ____ table when _____ TV set exploded

问题描述:

They were at ____ table when _____ TV set exploded
A / ,a
B the,a
C / the
D a ,a

选择C,这句话的意思是当电视机爆炸的时候,他们正在吃饭…这是考察a和the区别比较典型的例子…