What( ) when you lost the library book?A did happen B is happening C happened D was happening.选哪一个 为什么选那一个 这句话应该怎么翻译

life is like angry birds.There are always several pigs laughing when you los What are you doing when you fifteen? When you are sick ,what should you Los when earthquake happen,what are you doing? what about you?when is your birthday? you could do what you like when you like. what do you do when (it is raining)?还是what do you do when (it rains)? what will you fell when people cut in what will you fell when people cut in 英语翻译What （） you（）to do when you （）? 英语翻译what are you saying when I interrupt you What do you do when you have a cold? What you need,when you need it 如何翻译? What will you do when you grow up? what you hope to find out when you visit What do you want to do when you are old? What do you want to be when you grow up 翻译:what should you do when you are ill?