Choose the correct form of the verb/tense from the given sets of options to fill in the blank space in the sentence -
"When we reached the theatre the play ______ already _______
1
was/began
2
has/begin
3
had been/ begun
4
had/begun
Choose the correct form of the verb/tense from the given sets of options to fill in the blank space in the sentence -
"When we reached the theatre the play ______ already _______