填入正确的引导词.
1.Is there anything _____ you don't understand about the problem?
2.This is the very book _____ I have been looking for.
3.All the presents _____ your friends gave you on your birthday should be put away.
4.The worst matter _____ I'm afraid of happened in the end.
5.He was late for the opening ceremony,_____ was very surprising to me.
6.Lu Xun _____ real name was Zhou Shuren,wrote many political novels and essays.
7.The man _____ you met yesterday is my father's schoolmate.
8.The man _____ is walking on the playground is my old friend.
9.A child _____ parents are dead is called an orphan.
10.Can you still remember the time _____ we spent together in our childhood?
11.The terrible typhoon killed the people and cattle _____ were in the fields.
12.The wind blew down the tallest tree _____ is in front of our school gate.
13.This is the very thing _____ I was looking for.
14.This is the second novel _____ I have ever read.
15.There is nothing in the world _____ can frighten me.
l.that 2.that 3.that 4.that 5.which 6.whose 7.who/whom 8.who/that
9.whose 10.That/which 11.that 12.that 13.that 14.that 15.that