定语丛句问题When you are clinically depressed,one thing ________ c
定语丛句问题
When you are clinically depressed,one thing ________ can happen is that the level of serotonin may drop.
A) which B) although C)when D)that
这应该是一个限制性定语丛句吧?A)和 D)好像都对?
应该选D
(1)语感
(2)that 在定语从句中可以指代主语
-------------------------------------
which 也可以在定语从句中指代主语呀。