Completa las frases con la forma correcta del verbo que se encuentra entre paréntesis; haciendo sus formas interrogativas, negativas y afirmaciones Alex (not/travel) alone before his trip to London.

Alex had not traveled [hadn't] alone before his trip to London.

Alex had traveled alone before his trip to London.

Had Alex traveled alone before his trip to London?.

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?