Tenses

Can you check these?

1- When I was in New York, I.......................................... (buy) a realy good guide book.

- bought

2- She........................... (play) the piano when our guests............................ (arrive) last night

- was playing

arrived

3- I know Sam. We........................ (meet) several times.

- have met

4- Whenever he............................ (go) to town, he............................. (spend) a lot of money.

- goes

- spends

5- They.................................... (prepare) the Christmas dinner today.

- are preparing

6- When she............................. (be) 18, she will go to Harvard

- is

7- I......................... (lose) my keys. I cannot remember when I last...................... (see) them.

- lost or have lost?

- saw