1.my mom is cooking noodles.（对cooking noodles提问）
_____ ____mom __________
2.what about your brother?(同义句转换)
___ __ your brother?
3.the old man often reads a newspaper after dinner.(用now改写为现在进行时的句子)
the old man______ ______a newspaper now.
4.grandma is writing a letter.(对 grandma 提问)
____________is weiting a letter?