根据语境选出最恰当的一项(　　)崖壁下有几处坟地，坟前立着的石碑许多已经破碎，字迹模糊，枯水季节，伏在江里的石头已经露出水面，周围一片寂静。________________。

1don’t search my book case for your CD-player! Just look where it bein the drawer, in your schoolbag, or somewhere else like that.

_________ the task on time, he was fired by the boss.

feather falls slower than a stone only because the air holds the feather back more than it ______ the stone.

29_____ a girl’s brain is better organized to send and receive speech, we generally talk to them more