(一) Xi’an is a beautiful city in the north of China. _______ spring comes, the weather becomes warm in Xi’an. It is often _______ and cloudy. There is _______ rain in March and April . Summer is hot. The hottest months _______ July and August. During summer, heavy rain _______ very often. So it’s important _______ raincoats and umbrellas. Autumn in Xi’an is cool. _______ lasts from September to November. The weather is often sunny and _______ little rain. Many tourists go to Xi’an because it’s the best season of the year.