Salt deposits and moisture threaten to destroy the Mohenjo-Daro excavation in Pakistan, the site of an ancient civilization that flourished at the same time as the civilizations in the Nile Delta and the river valleys of the Tigris and Euphrates.
Salt deposits and moisture threaten to destroy the Monhenjo-Daro excavation in Pakistan, the site of an ancient civilization that flourished at the same time as the civilizations in the Nile delta and the river valleys of the Tigris and Euphrates.
The answer is A, but I am confused, where is the verb for the main sentence?
Salt deposits and moisture threaten to destroy the Mohenjo-Daro excavation in Pakistan, the site of an ancient civilization that flourished at the same time as the civilizations in the Nile delta and the river valleys of the Tigris and Euphrates. (A) that flourished at the same time as the civilizations (B) that had flourished at the same time as had the civilizations (C) that flourished at the same time those had (D) flourishing at the same time as those did (E) flourishing at the same time as those were
1)为什么说those 无指代对象? 2)D,E中为什么flourishing 不对而必须用 that flourished...? that 从句修饰的是site or civilizations?
I got confused with the tense here, can I understand this way? past perfect tense means the events have lasted a period of time before, and past tense means the events happened right on an exact point of time before?
请看以下几个例子: OG1. a divorce that occurred when they were children...讲的小时候的事,已结束 OG80.an ancient civilization that flourished at the same time as..以前的事情,现在不再flourish了 OG102.a concert performance that the composer himself staged in 1911...1911年的事儿,不能用staging修饰
OG199,a quake of comparable magnitude occurring in the west...一般描述,现在并没有结束 OG113.Visitors have often seen monkeys sleeping on the branches...没有结束,并且和前面的现在时态一致