Answer:
a.You didn't see me, did you?
b. He sells toys, doesn't he?
c. They don't like cats, do they?
d. She loves flowers, doesn't she?
e.You are a student, aren't you?
f. These boys can't swim, can they?
g. You won't trust him, will you?
h. You don't like fishing, do you?
i. Tina and Arun were sad yesterday, weren't they?
j . nothing is wrong, isn't it?
k. everyone passed the test , wasn't they?
l. you can swim very well, can't you?
m. she draws a beautiful picture, doesn't she?
n. mina always sleep early, doesn't she?
o . suman plans to buy a new computer this weekend, doesn't he?
p. sita and gita can cook food, can't they?
q. tina has written this article, hasn't she?
r . global warming will definitely cause problem in the future, won't it?