定语从句习惯搭配: the period when… a time when… since 1898 when… the year that… an age in which… the way in which… the next time + 句子 phenomenon in which…
此题, 1. Now currently is redundant because both adverbs express the same idea 2. 过去完成时表示过去的过去,通常与一般过去时连用(不和现在完成时连用) 3. <1> adj adj n 两adj修饰名词且还要排队 <2> adv adj n 其中adv修饰adj,adj修饰n时正确 所以碰到这种情况要根据句意来选,所以D的current应改为currently 4. E选项,now that既然:because of something or as a result of something,此处不合题意 5. in which or when can be used interchangeably in this sentence