反意疑问句： Jim's parents didn't go to Hong Kong last month,______? Mr Smith will visit our scho

反意疑问句： Jim's parents didn't go to Hong Kong last month,______? Mr Smith will visit our scho
反意疑问句：
Jim's parents didn't go to Hong Kong last month,______?
Mr Smith will visit our school next week, _______?
You haven't been to Shanghai before, ________?
Jack has done his homework, _______?
Ann could swim when she was six,______?
The students must study hard,_______?