—what is Jack doing?—He is inviting his f

—what is Jack doing?—He is inviting his f ( ) 4.— What is Peter doing?— He ________ his mother ______ what's David doing?——He is b with his homework.后面加什么? What is he doing —Where is Jack?—He is away to spend his holiday.He's gone ei he is()doing his homework He is doing his homework what is he doing ------he is p______b_______. what is he doing now What is he doing in his room?转换成同义句：What is he _ _ _in his r Where is Jack?He __________ his country. He is writing an inviting card.He wants to ____ his friends