如何判断关系代词前的介词
1.The ship,____ the Europeans sailed to the American continent,was called the Mayflower.
2.The family _________ I stayed in Rome is coming to England soon.
3.He has written a book,the name_________ I have completely forgotten.
4.It is a family of 8 children,all ____ are studying music.
5.Can you suggest a time _____ it will be convenient to meet?
6.The town,_________ they came,was in the north of the province.
7.Here are some blouses,none ____ suits me.
8.The fur coat ______ the lady was dressed was very expensive.
9.The emperor,________ the palace was built,was very cruel.
10.Little Peter had a dream ______ he was taken to the amusement park.
11.He spent a wonderful summer,_____ he joined us in the camping trip.
12.The money,____ he bought the bike,was given by his grandfather.
13.The buses,most ________ were already full,left the school one after another.
14.Ann White,______ we received the invitation,lives next door to us.
15.The story,________ the film is based,is a true one.
以上需要填写介词+关系代词,用什么介词+关系代词,为什么?