The plant is dead. I it more water.A. will giveB. will have givenC. should have givenD. m

问题补充：

The plant is dead. I it more water.

A. will give

B. will have given

C. should have given

D. must give

答案：

A. will give

B. will have given

(答案→)C. should have given

D. must give

解析：考查虚拟语气。Should have done本应该做某事实际上却未做；是对过去情况的虚拟。句意：那颗植物死掉了，我本应该给它浇更多的水的。故C正确。

考点;考查虚拟语气