Resposta:
a. Was I at the pintball field with my friends?
b. Was the snowboarding competition very dangerous?
c. Were the kids at a magic show last Sunday?
d. Was the principal upset with me and the students?
e. Was my mother sick last month?
f. Was the weather sunny at the beach?
Explicação:
Para trocar a frase da afirmativa para a interrogativa, basta você trocar o verbo de lugar (colocando-o na frente).
Ex.: She was baking a cake (afirmativa) = Ela estava fazendo um bolo.
Was she baking a cake? (interrogativa)= Ela estava fazendo um bolo? (lendo ao pé da letra, fica "estava ela fazendo um bolo?"
