Complete the sentences with the best prepositional phrases in brackets. 1) By the time she was twenty, Silvia had travelled (travel) all over the world. 2) They were usually ______ (rely) when it came to looking after their younger brother. 3) ______ (voluntary) work helped him to develop his interpersonal skills. 4) Five minutes into the film, I realised I ______ (see) it before. 5) I ______ (say) that you borrowed books when he ______ (read) them.