问题
选择题
The air quality in Beijing as well as in the neighboring cities we once spent much time____ better and better.
A．in getting
B．having got
C．in is getting
D．has got
答案
答案：C
“我们曾经度过好多时间的北京和周围城市的空气质量越来越好了。”句子主干是The air quality is getting better and better.答案C。