1.Nowadays almost everyone prefers to use a smart mobile phone_________ functions are more practical.
2. The speaker spoke of some writers and some books _____ were popular then.
3 I, ________am your close friend, will try my best to help you whenever you are in trouble.
4.We all like the way ________ the teacher gives his lessons.
5. ________ is recorded in the history book , Diaoyu Island has belonged to China since ancient times.
6. Dorothy was always speaking highly of her role in the play, of course, _____ made the others unhappy.
7.Parents should pay attention to the cases __________ their children have difficulty adapting to new surroundings.
8.I am looking forward to the day__________my daughter can read this book and know my feelings for her.
9.English is a language shared by several diverse cultures, each of __________ uses it somewhat differently.
10. The old man has two sons, one of _______ is a soldier.
11 . Such a book ______ you showed me is difficult to understand.
12. I suggest that one more chair _________(buy) at once.
13. The reports went missing in 2012 and nobody __________（see）them since.
1.whose 2. that 3. who 4.that 5. As 6.which 7.where 8.when 9.which
10. whom 11. as 12. should be bought 13 . has seen
