Our bodies are strengthened by exercising_____, our minds are developed by learning [ ]

填入下面一段文字横线处的语句，最恰当的一句是 我的菜畦靠近一条芦苇丛生的荒凉小溪，_____，在菖蒲长得又高又密的地方，有几处汩汩作响的清泉。

I think ____ with friends is better than_______.

It is said that living ________ nature may help people live longer.

s the small house less than 20 square meters,under ______Roof lives a large family of three generations