How to read “Room 2001”？ Room two-oh-oh-one or Room twenty-oh-one?

How to say Room 2001 in English? Room two-oh-oh-one or Room twenty-oh-one?

What does “all down the line” mean in this song？ In the song lyrics Our school will shine today, our school will shine Our school will shine today, all down the line. Our school will shine today, our school will shine When the sun goes down, when the moon goes up Our school will shine what does "all down the line" mean?

Another choice question When we reached the station, the train had still not arrived; so we ______ . A. needed not to hurry B. needn't have hurried C. need not to have hurried D. didn't need to hurry Which one is correct, B or D?I guess D is correct. Since the train was not there, we didn't need to hurry any more. Is this so?I guess B is not correct. Because one needs to get to the station before the train arrives.

A multiple choice question You ____ the examination again since you had already passed it. A. needn't have taken B. didn't need to take C. needn't take D. mustn't take Which one is the correct answer, A or B?I guess A is correct, maybe it means You had already taken the exam and passed it, You took the exam again, but You needn't have taken the examination again. But I guess B is also correct, If it were present tense, I'm certain that "If you have already passed the exam, you don't need to take it again" is correct. But B refers to the past, I wonder if B is correct. I am confused.

How to address a waiter/waitress in an American restaurant? How to address a waiter or waitress in a restaurant in the U.S.? How to get his or her attention? Is "waiter!" or "waitress!" impolite?