7.adn8fail的后面直接加s,fails,failed9.Didn't pass the exam10和11.returns和returned12Give it back to me13Buy gifts for the family14这个题我不知道你想填入什么样的词,我自己想的是打扰disturb15 how much do you buy you bike?16fitted和fitting18.complained complaining19.complain about 对某人与某物抱怨20.included including21.表示时间的介词 表示场所和方向的介词 其他介词