依次填入横线处的语句，衔接最恰当的一句是（ ）我站在这位于雨林第三群落的空中走廊上，见谷两旁有望不断的古树，有数不清的佳木，有看不尽的名杉。____________________，置身此等仙境，我焉能不顿生“偶然临险地，不信在人间”的感觉！①昂首上观，雨林第四群落的伟岸乔木，仍是高难企及②耳畔有幽禽唱合，婉转清扬……③它们青幢碧盖，浓绿生云。④我仅能从它们亲吻蓝天的树冠的缝隙中，偶见几抹金亮的光束，如探照灯般地投射进来。⑤谷下有清溪湍湍，叮叮咚咚；⑥低头下望，雨林第二群落的树木，尽收眼底。

We will go to the Wushan Square thisafternoon, why not take a bus —We ________ take a bus , it’s onlyone kilometer or more.

______ he works hard, I don’t mind when he finishes the experiment

When it comes _________ ourselves at the weekend, he would talk about his fishing experiences in the countryside

Justa minute. I’ll go to get some apples for you.–Thanks,but you get too many. One is enough.