—Who______ it be that is knocking at the door? —It ______ be Father, but I’m not sure.
I ________ to the lecture this afternoon, but I ________ a bit ill.
— I phoned you at 7 yesterday evening but nobody answered. — Oh, I ________ my dog in the park then.
________, I prefer to listen to classical music rather than rock ’n’ roll.
The twin sisters look so much alike that it’s ________ impossible to tell one from the other.
Paris________ be a wonderful city but it’s not somewhere I’d like to live.