变成同义词.there is a computer on his desk.He ________________a c

变成同义词.there is a computer on his desk.He ________________a c There is a computer _______ the desk.A.on B.in C.under D.for There is a computer game on the desk 改为复数 There is a computer on the desk改成一般疑问句 Is there a computer on your desk?做否定回答 is computer there on desk the a .连词成句 There _______a computer on the desk.A.is B.have There is a computer on my desk.一般疑问句 there is a computer on my desk 和this is a computer on my nde There is a computer and some books on the desk对画线部分提问 画线：a c There is a desk in his bedroom.On--desk there is--pencil-box there is a book on his desk是什么意思