将下面句子合并为含有宾语从句的复合句.Where does Peter come from?LiLei wants to know.

将下面句子合并为含有宾语从句的复合句.Where does Peter come from?LiLei wants to know.
将下面句子合并为含有宾语从句的复合句.1,.Where does Peter come from?LiLei wants to know.
2.The earth moves around the sun.Everyone knows.
3.How many English words has Lily learnt since 2010?Can you tell me
4.Why was she crying?She asked the little girl.