PART 1 : Fill in the gaps with the relative pronouns : Who , Which 1, These exercises ------------ the teacher asks you to do is difficult. 2, Our grandparents ------------ loved us so much died. 3, Christmas is a festival ------------ is on 24th December 4, The gird ------------ won the prize is happy. 5, The bicycle ------------ is in my house is mine. 6, I am using a sentence ------------ contains an adjecyive clause. 7, The man ------------ helped you yesterday is my uncle. 8, Do you know the driver ------------ took them to the town last night. 9, My friend borrowed the book ------------ was on that long short. 10, The house -------------- is painted violet is my uncle's. 11, The answer ----------- is usually given to this question is very short. 12, What color is the dictionary ------------- is taken from the desk. 13, The little boy ------------ swam across the river is Hoa's brother.