Completa las frases con la forma correcta del verbo que se encuentra entre paréntesis.
Ejemplo Alex ____ (not/travel) alone before his trip to London.1 de 8 I ____ (be) at home all day. I had to get out and go for a walk.2 de 8 She ____ (teach) Shakespeare before.3 de 8 _____ you _____ (eat) breakfast when you left the house?4 de 8 We ____ (not/finish) the document when the computer crashed.5 de 8 We _____ never _____ (see) a whale before our trip.6 de 8 She ____ (prepare) dinner before leaving for work that day.7 de 8 I ____ (not/do) all my homework when I went to class.8 de 8 _____ you _____ (meet) her before? 
