SincetheschoolinBritainstartsaround9:00a.m.andendsabout...

来源：国语帮 2.35W

Since the school in Britain starts around 9:00 a.m. and ends about 3:30 p.m., means I could get up an hour later than usual.

A．this B．what

C．as D．which

【解析】考查代词。句意：因为英国学校9点上学，3点半放学，所以这就意味着我可以比通常晚起1小时。此处since引导原因状语从句，后面主句的主语不能是what/as/which，它们只能引导从句，所以用this指代前面的事情，故选A。