1．(2019·镇江一模)China's Beidou Navigation Satellite System has started providing global services, ________ to become complete around 2020.
A．being scheduled B．scheduled
C．to schedule D．scheduling
解析：选B 句意：中国北斗导航卫星系统已开始提供全球服务，计划在2020年左右完成。be schedule to do sth.“计划做某事”，固定搭配。
2．(2019·苏州一模)________ the food, the foreign guests did enjoy the dinner for the Spring Festival.
A．Eat up B．Eaten up
C．To eat up D．Having eaten up
解析：选D 句意：把所有的食物都吃掉以后，这些外国的贵宾非常享受中国的春节。根据句意可知这些外国贵宾与吃掉美食之间是主动关系，而且动作已经完成，所以用现在分词的完成式。
