请帮忙回答4道英语填空题

请帮忙回答4道英语填空题1.Unfortunately,a plane ______200 passengers crashed into the mountain.(carry)2.What class would you like to ____,first,business or economy?(flight)3.His way of telling the story add _____ to the joke.(excite)4.Our playground is bigger than yours.（同义转换）Your playground is _______ big _______ours.不用写理由,2.flighting 3.excited 4.more;than我不太懂，请问为什么?