They talked for about an hour of things and persons _________ they remembered in the school.

What do you think of the book ——Oh, excellent. It is worth _________a second time.

This must be a footprint of a tiger. — It ____ be. A tiger’s should be much larger and deeper than this.

下列句子文言句式不相同的一项是（ ）

Why do you want to study abroad– That experience may help make our life ___ .