a)Did Mark brake the glass?Yes,he did.
b)Was your sister doing her homework when I called?No,he wasn't.
c)Did mother sign your report this morning?No she didn't.
d)Did Sheila go to piano lessons yesterday?No,she didn't.
e)Was he talking on the phone when I saw him?Yes he was.
f)Did you see the plane?No,I didn't
g)Was he swimming at 5 p.m.?No, he wasn't.
h)Was father sleeping when you got home?Yes ,he was.