将下列语句依次填入文中的横线处，使上下文语意连贯。园林多么繁华都靠不住， 用画用诗用文写出来的纸上园林反而耐看耐读。 ①其实那座园很小，园中读书堂也小，浇花亭尤小。②弄水种竹轩、见山台、钓鱼庵、采药圃等等更远远不如名字那么清幽。③司马温公描写独乐园的诗歌传诵一时。④饱读纸上园林，可以读出自己胸中的园林，世人真不必多事造园了。⑤独乐园所以为人欣慕，不在于园，而在于诗

________ is often the case with human beings, many animals sleep a lot when young, but sleep much less when they get older.

mits of a person’s intelligence, generallyspeaking ,are fixed at birth, but hereaches these limits will depend on his environment.

The company provides cheap Internet access.______, it makes software freely available.[ ]

I wonder why Jenny ____ us recently. We should have heard from her by now.