题干
More and more parks ________in Mentougou in five years.
A：build
B：built
C：will be built
D：were built
答案(点此获取答案解析）
C
More and more parks ________in Mentougou in five years.
A：build
B：built
C：will be built
D：were built
的方程 
与方程 
的解相同，则 
的值为（ ）.