单选题 45.  If you have never planted anything, you won't be able to know the pleasure of watching the thing you have planted ______.
【正确答案】 A
【答案解析】[考点] 非谓语动词
watch后接不带to的不定式作宾语补足语。故选A。
   如果你从未种植过任何东西，你就不会明白观察你种植的东西生长所带来的快乐。