The old tower must be saved, _______the cost.

When will the 70th anniversary ceremony for our school ________? All the students and teachers are waiting for it.— Well, in my opinion, at 9 am.[ ]

She has mastered English grammar and ________ a large vocabulary without the help of a teacher.[ ]

A: I enjoyed the performance very much. B: Yes, it was really good. I think boy in white was the best actor.

He is always the first ______ andlast ___________.