( )more attention , the treescould have grown better. A.Given B.To give C.Giving D.Having given说出原因

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(     )more attention , the treescould have grown better. A.Given B.To give C.Giving D.Having given说出原因

( )more attention , the treescould have grown better. A.Given B.To give C.Giving D.Having given说出原因
( )more attention , the treescould have grown better. A.Given B.To give C.Giving D.Having given
说出原因

( )more attention , the treescould have grown better. A.Given B.To give C.Giving D.Having given说出原因
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.

D.因为被一直关注,所以树可以一直生长的很 好。一直长的很好嘛,不就是说树总被关注着么,那么就应该用完成时啊。现在完成时,从过去到现在一直不断的啊,所以选D啊,given 就是被动么,一直被关注啊,就是D拉

a

d