Answer: A) Did not eat.
Explanation for this question is being written.
Answer: B) Didn't bring.
Answer: C) Was not.
Answer: C) Did
Answer: B) Past Simple.
Answer: B) Yesterday
Answer: A) Past Simple.
Answer: B) Didn't
Answer: B) Were allowed.
Answer: B) Didn't see.
Answer: C) Wasn't nominated.
Answer: A) A didn't answer.
Answer: B) Failed
Answer: B) Didn't expect.
Answer: C) The students were not on line two weeks ago.
Answer: C) Didn't wear.
Answer: A) Wasn't
Answer: C) Were-wasn't
Answer: A) They weren't.
Answer: C) Didn't
Answer: C) We didn't have money.
Answer: C) Wasn't liking.
Answer: A) Didn't read.
Answer: D) We didn't understand lecture last week.
Answer: B) Do is supposed to be did because the action happens in the past.
Answer: B) Wasn't
Answer: C) Did not.
Answer: A) Did not study.
Answer: C) Had
Answer: C) They did not go to the party last night.
Answer: A) Didn't go.
Answer: C) Didn't watch.
Answer: C) She did not sing the song yesterday.
Answer: B) Didn't you?
Answer: D) Didn't go.
Answer: A) Didn't visit.
Answer: B) I did not eat breakfast this morning.
Answer: C) Didn't come.
Answer: D) No, they weren't.
Answer: C) Didn't like to be told.
Answer: C) Didnt understand.
Answer: B) Didn't have.
Answer: C) Didn't do.
Answer: C) C
Answer: B) Subject+did+not+verb(v1)+complement
Answer: C) Didn't have to.
Answer: B) Didn't eat.
Answer: A) Didn't like.
Answer: B) Didn't he?
Answer: C) Wasn't
Answer: C) Didn't go.
Answer: B) FALSE
Answer: D) Didn't enjoy.
Answer: C) Didn't meet.
Answer: D) Weren't
Answer: C) Couldn't
Answer: C) I had a toothache.