完形填空（共1小题）
阅读下面短文，掌握其大意，然后从各题所给的四个选项中选出一个最佳答案。
Qingming ,meaning clear and bright ,is the most important festival in spring ．It is also called Tomb Sweeping Festival ．It comes________early April ．On that day ,people visit tombs（墓）to honor （尊敬）the dead ．They always________some time cleaning the tombs area ．They usually plant some trees near the tombs and decorate（装饰） them with fresh_______．
But it is not________a day for honoring the dead ．It is also a good time to celebrate the_______of spring ．With the coming of spring , nature_______,dressing the world in green ．All is new ,clean and fresh ．Birds begin to________houses for their babies ．In forests and fields , many animals have babies at this time of year ．Days begin to get_______and the weather gets warmer ,________Qingming is also a  happy time for people to enjoy the outdoor activities ,  ________flying kites ,swinging （摇摆、秋千）and hiking ．This is why this festival has been very popular for thousands of years．

A．on B．at C．in D．by

A．spend B．pay C．cost D．take

A．air B．food C．flowers D．water

A．sometimes B．just C．still D．always

A．going B．changing C．setting D．coming

A．comes down B．wakes up C．rises up D．falls off

A．put B．build C．climb D．fly

A．higher B．shorter C．cooler D．longer

A．but B．when C．so D．if

A．such as B．as if C．for example D．look like