1.my sister is very lovely.(改为否定句,改成一般疑问句,对my sister提问,对my提问）2.he went to Italy last month.(改为否定句,改成一般疑问句,对he提问,对last month提问,对Italy提问））3.the thieves will steal the diamond this evening.(改为否定句,改成一般疑问句,对steal the diamond 提问,对this evening提问）

1.否定句：my sister isn't very lovely.
一般疑问句：Is my sister very lovely?
对my sister提问：Who is very lovely?
对my提问:Whose sister is very lovely?
2.否定句：he didn't go to Italy last month.
一般疑问句：Did he go to Italy last month?
对last month提问:When did he go to
Italy last month?
对Italy提问:Where did he go last mouth?
3.否定句：.the thieves won't steal the diamond this evening.
一般疑问句：Will the thieves steal the diamond this evening?
对steal the diamond 提问:What will the thieves do this evening?
对this evening提问:When will the thieves steal the diamond?
就这样了.
改否定句只需在助动词后加 not
改一般疑问句只需把助动词提前.