Answer: A) Laura didn't sing in her birthday the last Saturday.
Explanation for this question is being written.
Answer: D) Couldn't
Answer: C) Did
Answer: A) Did not ask.
Answer: B) Wasn't
Answer: A) Give
Answer: A) Didn't earn.
Answer: C) He didn't finish his homework on time.
Answer: A) Did not go.
Answer: A) She did not study for the exam.
Answer: C) Weren't
Answer: C) Didn't call.
Answer: D) Didn't go.
Answer: C) Did not study.
Answer: B) Didn't have.
Answer: B) Did not.
Answer: B) Didn't play.
Answer: A) PAST TENSE.
Answer: D) Didn't have.
Answer: C) Didn't
Answer: A) Didn't visit.
Answer: B) Did not / didn't + base verb.
Answer: B) Didn't meet.
Answer: A) Didn't go.
Answer: C) I didn't go to the party.
Answer: D) He didn't go to the party last night.
Answer: D) Didn't get.
Answer: C) Didn't enjoy.
Answer: C) Didn't travel.
Answer: B) SHE did not study for exam yesterday.
Answer: B) B
Answer: C) We did not buy a new clothes for party year ago.
Answer: D) SP + auxiliary verb (didn't) + verb in base form+ complement.
Answer: A) I didn't visit my parents yesterday.
Answer: A) I didn't speak.
Answer: A) Didn't help.
Answer: A) Did not attend.
Answer: C) Didn't eat.
Answer: C) Were
Answer: D) Was not.
Answer: C) I did not see her yesterday.
Answer: B) Didn't
Answer: A) Didn't use.
Answer: D) Called / did not answer.
Answer: C) Didn't respond.
Answer: C) Didn't do.
Answer: D) Were-didn't
Answer: A) He wasn't.
Answer: C) Didn't want.
Answer: C) Was
Answer: D) Didn't live.
Answer: A) Did, realize.
Answer: B) Did not go.
Answer: B) Didn't enjoy.
Answer: B) False