( )more attention , the treescould have grown better. A.Given B.To give C.Giving D.Having given
问题描述：
( )more attention , the treescould have grown better. A.Given B.To give C.Giving D.Having given
说出原因
答
答案是A．
首先从后半句看,用could have ,说明是虚拟语气,因此前半句应与后面对应,Given more attention其实是if (the trees)were given more attention 的缩略．
B项To give说明事情还没发生,与题意不符．
D项的错误在于应该使用被动,the trees是"被”给予关注的．
C项不要说,肯定是错的．