Stop________computer games!Please_______your homework.
问题描述：
Stop________computer games!Please_______your homework.
1.play；do
2.playing；do
3.to play；doing
4.playing；doing
（please后面可加什么?原因）
答
2.playing；do
stop doing,别再干.
Please____do___your homework.
这是祈使句,用原型,为了不让语气太生硬,通常加please.