英语:按要求改句子.
1、That'smyuncle.(改为一般疑问句)____________________
2、Arethoseyourkeys?(作否定回答)____________________
3、Theseareoranges.(改为单数句)_____________________
4、(Mrs.Brown)isforty.(对带划线括号句子提问)____________
5、They'rephotosofmyfamily.(改为否定句)_______________