Betty’s grandmother was cooking at that time 变为一般疑问句,并做肯定回答.
问题描述:
Betty’s grandmother was cooking at that time 变为一般疑问句,并做肯定回答.
答
was Betty's grandmother cooking at that time ?
yes,she was
答
What was Betty’s grandmother doing at that time ?
She was cooking.
答
was Betty’s grandmothercooking at that time ?
YES she was.
答
Was Betty's grandmother cooking at that time?
Yes,she was.