1．Senior 3 high school students should be given enough sleeping time，________ they are busy preparing for the College Entrance Examinations.
A．even so B．as though C．as if D．even if
答案 D
解析 even if即使，引导让步状语从句。句意为：即使高三学生忙于准备高考，也应该给予充分的睡眠时间。
2．________ English has changed a lot over time and ________ English spoken between about AD 450 and 1150 was quite different.
A．/；the B．/；/ C．The；/ D．The；the
