按要求填空。1. He lies on his back.（用now改写句子）
He ________________ on his back now.
2. Tom comes from the USA.（对画线部分提问）
________________ from the USA?
3. It's time to have breakfast.（改为同义句）
Time ________ ________.
4. He doesn't have a pen.（改为同义句）
He ________________pen.1. is lying 2. Who comes 3. for breakfast 4. has no