定语从句的题目做不来,希望有人来帮忙!1.Those spades_whick we had planted many

定语从句的题目
做不来,希望有人来帮忙!
1.Those spades_whick we had planted many trees went out of use
2.The village has a very big tree_which the villagers often have meetings
3.His naughty grandson has taken away his glasses,_which the old man could see nothing
4.That is the question_which the will have a discussion
5.Galileo invented the telescope,__which he could observe the stars
希望准确点,最好能说明理由啊哈...