Question

Change into interrogative:

a: He was thinking about studying next year
b:You were watching the talk show in the evening
c:She was changing her clothes to go to the party
d:They were leaving for lunch when I arrived
e:I was making a sandwich while I was calling you
f:We were attending a new course downtown

Answer 1

a: Was he thinking about studying next year?

b: Were you watching the talk show in the evening?

c: Was she changing her clothes to go to the party?

d: Were they leaving for lunch when I arrived?

e: Was I making a sandwich while I was calling you?

f: Were we attending a new course downtown?

Basicamente é só inverter as duas primeiras palavras do início e acrescentar o ponto de interrogação.