V
1 Where do they spend their winter vacation?
2 When do we listen to the radio?
3 What kind of magazines does he read in the Public Library?
4 Who keeps his or her books and notebooks in the desk?
VI
1 for, for
2 without
3 to
4 at
VII
1 must
2 May
3 Must, can
4 Can, can
VIII
1 She often helps her mother.
2 He seldom speaks over the telephone.
3 Mary always has a rest.
4 They usually play tennis.