s book, the word is used in its original sense unless ________ stated.

On my way home in the street I saw a lady ________ I thought was your aunt.

It was desired that the project ______ before the end of this month.

What’s the matter with the man hanging his head there?—Well，if you ________ know, he was caught stealing my bike.

(2013·高考北京卷)Hurry up！Mark and Carol________us