第二节 阅读下面材料，用不多于 1 个单词的正确形式填空
Yangshuo, China
It was raining lightly when I ______61_______(arrive) in Yangshuo just before dawn. But I didn’t care. A few hours _ ___62________, I’d been at home in Hong Kong, with __ 63_________(it) choking smog. Here, the air was clean and fresh, even with the rain.
