the policeman asked the man___at 9 o'clock last night

问题描述:

the policeman asked the man___at 9 o'clock last night
a;what he was doing
b;what he is doing
c;what was he doing
d;what is he doing

The policeman asked the man what he was doing at 9 o'clock last night.
He told the policeman he was watching TV at 9 o'clock last night.The policeman asked the man what he was watching at 9 o'clock last night.He told the policeman he was watching a football match between Shanghai Shenhua and Guangzhou Hongyuan on TV at 9 o'clock last night.