Choose the correct answer

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EX 5. Choose the correct answer.
1 I wasn't sure how Belinda would react because I
A didn't know
C hadn't been knowing
2 Lan
A hadn't been working
C didn't work
3 I wanted to say goodbye to Jerry, but he
yo
A was already left
C had already been leaving
4 When we got to the airport, I realized I
A was left
B had left
D had been leaving
C left
B wasn't knowing
D hadn't known
at the factory long when he was made a manager.
B wasn't working
D wasn't worked
her long.
B already left
D had already left
LAND
my passport at home!