英语翻译

题目

英语翻译
把下列句子改为翻译疑问句.
1.My classmates are working happily on the farm,________ _________?
2.The boy can't sing English songs,_________ __________?
3.She forgot to do her homework,________ _________?
4.Jenny is unhappy today,_________ _________?
5.They have never been to Shanghai,________ _________?

答案

aren't they;
can he?
didn't she;
is he;
have they;