小学六年级按要求改句.(英语题目)

问题描述:

小学六年级按要求改句.(英语题目)
Her father is cooking now.(划线部分是cooking.)
用四种句式划线部分提问.
1._______________________
〕2_______________________
3.+_______________--
4._________________________

who is cooking now?
what's your father doing?
Is your father cooking now?
Your father is cooking now,isn't he?