问题
选择题
Generally, senior citizens enjoy their freedom and they prefer to live on their own _________ they can.
A．as long as
B．as far as
C．now that
D．even though
答案
A
题目分析：句意：一般说来，老年人愿意享受自由，只要他们能够自己住他们喜欢自己住。as long as只要；as far as直到；now that 既然；even though即使。根据句意故选A。
考点：