Select the correct passive form of the given sentence.
More than a hundred people were watching the cricket match at the WACA
1
The cricket match had been watched by more than a hundred people at the WACA
2
The cricket match can watched by more than a hundred people at the WACA
3
The cricket match were being watched by more than a hundred people at the WACA
4
The cricket match was being watched by more than a hundred people at the WACA