Model:the computer is very useful to us,___isn't it?____1,our country as changed a lot since1978,_____?2,it's going to rain this afternoon,______?3,she teaches maths,______?4,we're going to have an english exam next week,_____?5,yuu won't be away for

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Model:the computer is very useful to us,___isn't it?____1,our country as changed a lot since1978,_____?2,it's going to rain this afternoon,______?3,she teaches maths,______?4,we're going to have an english exam next week,_____?5,yuu won't be away for
Model:the computer is very useful to us,___isn't it?____
1,our country as changed a lot since1978,_____?
2,it's going to rain this afternoon,______?
3,she teaches maths,______?
4,we're going to have an english exam next week,_____?
5,yuu won't be away for long,_______?
6,you won't have any classes tomorrow,_________?
7,they can't walk there,________?
8,you haven't finished your work yet,______?
9,he knew how to mend the machine,______?

Model:the computer is very useful to us,___isn't it?____1,our country as changed a lot since1978,_____?2,it's going to rain this afternoon,______?3,she teaches maths,______?4,we're going to have an english exam next week,_____?5,yuu won't be away for
1.has't it
2.isn't it
3.doesn't she
4.aren't we
5.will you
6.will you
7.can they
8.have you
9.didn't he

1.has't it
2. isn't it
3. doesn't she
4. aren't we
5. will you
6. will you
7. can they
8. have you
9. didn't he

1. Our country has changed a lot since 1978, hasn't it?
2. isn't it
3. doesn't she
4. aren't we
5. will you
6. will you
7. can they
8. have you
9. didn't he