用 which, who或 whom填空, 每词不限用一次
（1）、Lucy loves the music she can sing along with.
（2）、The woman they wanted to visit was a teacher.
（3）、Look! The man for you are waiting is coming.
（4）、The room in there are many books is mine.
（5）、Mr Li is the person helped me a lot and I will never forget him.
（6）、The movie I have seen twice is very interesting.
（7）、I like the cake you bought me yesterday.
