按原文填空。 

1．奶奶把小女孩抱起来，                。她俩在光明和快乐中飞走了，越飞越高，飞到那                  ，

                 ，                的地方去了。    

2．天气真好，             ，一丝风也没有，干冷干冷的。那是没有月亮的夜晚，可是整个村子——白房顶啦，烟囱里冒出来的             ，            一身银白的树木啦，雪堆啦，全看得见。天空撒满了              的星星，天河显得很清楚，仿佛为了过节，有人拿雪                               ……

This kind of exercise is most _______, and therefore is a good test of your students’ ability.

A．surprising

B．encouraging

C．exciting

D．challenging