问题
选择题
I enjoyed your lecture very much, ______ there were some parts I couldn’t quite understand.
A．because
B．unless
C．after
D．though
答案
答案：D
题目分析：句意：我很喜欢你的演讲，尽管有一些部分我不是很理解。A因为B除非C在···之后，D虽然，尽管，引导让步状语从句。结合句意故选D。