og 838

断了的弦

838 According to scientists human expansion and the human appropriation of Earth's finite resources is the cause of what may be the most sweeping wave of species extinctions since the demise of the dinosaurs 65 million years ago.
A expansion and the human appropriation of Earth's finite resources is
B expansion and human appropriation of Earth's finite resources are
C. expansion and its appropriation of Earth's finite resources is
D. expansion, along with their appropriation of Earth's finite resources, is
E. expansion,along with its appropriation of Earth’s finite resources, are


我想问一下，印象中cause是单数，主语也应该是单数，这里主语是复数，这样对吗？

长丝弓

以下讨论供参考：
https://forum.chasedream.com/thread-1371771-1-1.html

主语是复数

CDG99

我也很疑惑，这里答案B不应该对应causes吗？但题目是cause。

葛葛冲鸭

疑惑+1！！！看到cause就以为主语应该是单数 选了D

葡萄糖123

我也遇到这个问题！不过我感觉可以从 and 和 along with来判断，因为这里应该是强调两个原因，如果用 along with就是说主要是human expansion了