Answer:

6)

(+) I went to Happy Zoo with my friends

(-) I did not (didn't) go to Happy Zoo with my friends

(?) Did I go to Happy Zoo with my friends?

7)

(+) My teacher recommended that we should visit the beach

(-) My teacher did not (didn't) recommend that we should visit the beach

(?) Did my teacher recommenf that we should visit the beach?

8)

(+) We shopped for some handicrafts last month

(-) We did not (didn't) shop for some handicrafts last month

(?) Did we shop for some handicrafts last month?

9)

(+) My brother bought some chocolate for us yesterday

(-) My brother did not (didn't) buy some chocolate for us yesterday

(?) Did my brother buy some chocolate for us today?

10)

(+) Tony fed the fish in aquarium two hours ago

(-) Tony did not (didn't) feed the fish in aquarium two hours ago

(?) Did Tony feed the fish in aquarium two hours ago

Past simple tense :

(+) S + V2

(-) S + did not (didn't) + V1

(?) Did + S + V1?

Maaf jika ada yang salah