They (a)   walked to the park.

Tom (a)   seen that film.

I have (a)   octopus. (eat)

We have (a)   our bikes up the mountain. (ride)

He has (a)   her a letter. (send)

I have (a)   many sentences in class. (write)

She has (a)   a new TV.

He has (a)   the race. (win)

I have (a)   all of my money. (spend)