用合適的代詞填空.
1.Mary is my friend,____ is eight years old.
2.My parents are wathing TV,____ watch TV every evening.
3.The water is dirty,____ is not fit for drinking.
4.The policeman came,____ asked a lot of question.
5.We bought John a doll,we'll give it to ____ as a present.
6.My English teacher was very angry with ____,because I forgot to do my homework.
7.Mrs.Wu is over there,ask ____ to come in.
8.She asked ____ a question,but we didn't know the answer.
9.The teacher told ____ a funny story,and we laughed a lot.
10.I phoned ____,but he wasn't in.