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经济增长速度适度回落是客观规律， 。 ， ， ， 。世界各大经济体在经济增长中都出现过这种趋势。①当雪球小的时候，可以很快翻一番 ②是不以人的意志为转移的，只能适应不可改变 ③犹如滚雪球一样 ④因为伴随着我国经济总量的扩大 ⑤随着雪球体积的增大，速度必然要降低 ⑥增长速度自然要回落

Is your Uncle Tom a soldier— No, but he once ______ in the army for 4 years.

Evidence has been found through years ofstudy______children’s early sleeping problems are likely to continue when theygrow up.

Jenny, how are you feeling today—Much , Mom. I think I can go to school today.

On summer evenings grandpa used to____funny stories to us children.