Though he had changed a lot, I _________him at once.

依次填入下面一段文字横线处的语句，衔接最恰当的一组是 （ ）①无论岁月怎么发黄，那不染尘埃的情感，终会在记忆发黄的纸页上留有痕迹②虽然书信正在悄无声息地渐离我们的生活，但那份美丽，依然值得我们永久地回味③它承载的不仅仅是一种怀旧的情绪，更是一种文化④那人情似纸般的纯净，不假修饰、任情感宣泄的年代⑤书信曾是人们交流信息和情感的一种传统方式⑥我们怀念那用笔带着心血书写思念的时代

In Disneyland, every year, some 800,000 plants are replaced because Disney refused to _______ signs asking his “guests” not to step on them.[ ]

It ______two years since we ______ this school, we really like it.

We all feel it is Jack as well as his wife that ______ for their son’s bad performance at school.