请问老师:which引导的非限制性定语从句,是修饰前面整个句子吗?which做主语指代“All citrus fruits grow on trees that are evergreen”这件事,对吗?All citrus fruits grow on trees that are evergreen, which means they don't drop their leaves in the fall.
Xintong Tiandi Technology applied for the trademark in 2007; the application made in China by Apple, which makes the iPhone, was not approved until 2013. 请问:(1) which 引导的定语从句的先行词是?(2) 后面一句的主句是 the application was not approved 吗?
在含有since的时间状语从句中的主要分句能用一般过去时和用完成时有什么含义的不同?The annual assembly was held
outside the Chinese mainland for the first time since its establishment in 2018.与主句改成现在完成时有什么具体语义上的不同?
The physicist has made a discovery , which I think is of great importance to the progress of science and technology. 为什么which 引导的非限制性定语从句中会出现think 和 is 两个谓语 ,想通过句子结构分析了解为何会存在两个谓语。