D
考查名词。
句意:他还会做一些奇妙的戏法。
A.戏剧 B.游戏 C.技巧 D.戏法,把戏
根据后文If I say "go to __ ", he would lie down and pretend to sleep. If I shout “dance”, he would move his feet and butt.(如果我说“去__”,他就会躺下假装睡觉。如果我喊“跳舞”,他就会动他的脚和屁股。)可知,Poppy会配合作者玩一些戏法。并且前面有动词do,只有D项tricks能与之搭配。故选D。