They had to learn...

 A Cracker

 A Peck of Troubles

 "You villain...

 Waistcoats for Life

 I'd Be A Bus...

 Untitled

 De Avonturen van ...

 Some of the Others

 'Tis Mr. Tabb

 Dad Rather Tired

 Don't Go Out...

 B Is Her Brother ...

 I’d Be a Sa...

 A Feast in Fairyland

 In Nurseryland