题目内容：
The number of tall buildings __________ greatly in Tianjin in the last few years.
A. is increasing
B. has increased
C. are increased
D. have increased
参考答案：【答案仅供学习，请勿对照自行用药等】
答案解析：
选择题：The number of tall buildings __________ greatly in Tianjin in the last few years
- 题目分类：习题答案
- 题目类型：选择题
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