Ответ:

1) a. watched

b. talked

c. had

d. came

e. arrived, missed

f. studied, passed

g. called

h. spoke

i. got up

j. did, went

k. found

I. followed

m. worked

n. stopped,called

o. tried

p. paid

q. caught, was

r. left

s. knew, were

t. brought

u. dropped

v. jogged

w. occurred, were

x. met

y. slept, went

z. flew

2) a. did she visit her parents last weekend?

b. did he clean his room before school?

c. the teacher didn't find the missing exams

d. did tom want to go to the movies alone?

e. helena didn't offer henrique a piece of cake

f. i didn't know what to do

g. did Alexander helped anita with her homework?

h. you didn't eat cookies after dinner

i. did you talk to her earlier?

j. we didn't turn off the tv after news

k. did he drink only a coke at the party?

l. mom didn't make breakfast early