Réponse:

a. went

b. visited

c. did you do

d. did you see

e. didn't eat

f. didn't like / spent

Explications:

go est un verbe irrégulier.

Tout les verbes réguliers finissent par ed.

Dans une question l'auxiliaire est mis au préterit et pas le verbe.

spend est un verbe irrégulier

Réponse:

A. I went

B. They visited

C. What did you do

D. Did they see

E. We didn't eat

F. She didn't like... She spent