15Cb. FOR and SINCE, prepositions of time (5.4.3, 24.2.4, 24.2.5, 24.2.7 y 24.2.8; páginas 44, 45, 168, 169 y 170 de Gramática Inglesa para Estudiantes Españoles)

15Cb. Fill the spaces in the following sentences by using FOR or SINCE (5.4.3, 24.2.4, 24.2.5, 24.2.7 y 24.2.8; páginas 44, 45, 168, 169 y 170 de Gramática Inglesa para Estudiantes Españoles)

15Cb. Fill the spaces in the following sentences by using FOR or SINCE (5.4.3, 24.2.4, 24.2.5, 24.2.7 y 24.2.8; páginas 44, 45, 168, 169 y 170 de Gramática Inglesa para Estudiantes Españoles)
1. Hilary Robarts has suffered from allergies she was a child
2. I’ve known Mrs Jago a long time
3. We’ve been running 20 minutes
4. Alice Mair has worked as a freelance writer in Ottawa, Canada, 1991
5. I’ve been waiting four o’clock
6. Ana has been sleeping ten hours
7. I haven’t eaten any chocolate I was a boy