Question

1-Complete as Frases com o passado Simples dos verbos e depois coloque as frases na forma Interrogativa e Negativa. a) They (watech)Tv last night. I- N- , b) He (call) the office to tell them he Was sick. I- N- , c) Those, students (Work) hard last semester. I- N- , I-significa Interrogativa e N-negativa ,

Answer 1

a) They watched TV last night.
Interrogativa: Did they watch TV last night?
Negativa: They didn't watch TV last night.

b) He called the office to tell them he was sick.
Interrogativa: Did they call the office to tell them he was sick?
Negativa: He didn't call the office to tell them he was sick.

c) Those students worked hard last semester. 
Interrogativa: Did those students work hard last semester?
Negativa: Those students didn't work hard last semester.

O verbo só muda para o passado simples quando a frase está na afirmativa. Se a frase estiver na interrogativa ou na negativa, o verbo continua no presente simples, ou seja, se o ''did/didn't'' estiver presente na frase, o verbo não muda para o passado. 

Espero tê-lo ajudado,