The play had already been on for quite some time when we _____ at the New Theatre[ ]

If we want to arrive at the village on time, we’d better ________.[ ]

You have failed two tests.You’d better start working harder,_______ you won’t pass the course

Did your mother come back late yesterday—No, she _______. She never _______ back late.

_____ the police thought he was the most likely one, they could not arrest him since they had no exact proof about it