Completa las frases con la forma correcta del verbo que se encuentra entre paréntesis; haciendo sus formas interrogativas, negativas y afirmaciones

1. She _____ (clean) up the kitchen by the time we arrived.

2. They _____ ( study) a lot the days before, so they were ready for the exam.

3.I ____ (be) at home all day. I had to get out and go for a walk.

4.She ____ (teach) Shakespeare before.

5._____ you _____ to that restaurant before?

6._____ you _____ (eat) breakfast when you left the house?

7.We ____ (not/finish) the document when the computer crashed.

8.She ____ (prepare) dinner before leaving for work that day.

9.I ____ (not/do) all my homework when I went to class.

10._____ you _____ (meet) her before?