为什么烟叶可以吓退蚂蟥，辣椒可以吓退哺乳动物，茄科植物是有啥魔法吗？That's why 'are either of you free?'will have to usually be accurate. Having said that 'Is both Peter or Paul free?'could be suitable, considering the fact that both is the opposite of 'each' and that's why the conjugation 'is' will be proper in th