关于英语语法subordinate clause 请帮我回答下列问题,问题指示是英文请大家becarefu

关于英语语法subordinate clause 请帮我回答下列问题,问题指示是英文请大家becarefu
write the subordinate clause in each sentence,and than tell whether it is an adjective,an adverb,or a noun clause.If a clause is elliptical,write the missing word or words.
11.Versailles is more famous than any other palace in Europe.
13.Although more than 30,000 craftsmen labored on the palace,it still tool longer than forty years to complete.
15.Whoever visits the palace will be overwhelmed by the sheer size and beauty of the building
这几个问题是我不确定答案的,希望大家回答后能给我解释为什么～thanx
13是adverb clause 我知道了，那么13里从句修饰的是哪个词？就是what is the word that the adverb clause in 13 modifies？