`1.` Janice

`-` Has Janice ever visited Brazil?

`->` No, She hasn't

`-` Has Janice ever tried sushi?

`->` Yes, she has

`-` Has Janice ever climbed a mountain?

`->` No, She hasn't

`-` Has Janice ever seen a crocodile?

`->` Yes, she has

`-` Has Janice ever ridden a camel?

`->` Yes, she has

`2. Tony & Beth

`-` Have Tony & Beth ever visited Brazil?

`->` Yes, they have

`-` Have Tony & Beth ever tried sushi?

`->` No, they haven't 

`-` Have Tony & Beth ever climbed a mountain?

`->` Yes, they have

`-` Have Tony & Beth ever seen a crocodile?

`->` Yes, they have

`-` Have Tony & Beth ever ridden a camel?

`->` No, they haven't 

`3.` Ben

`-` Has Ben ever visited Brazil?

`->` No, he hasn't

`-` Has Ben ever tried sushi?

`->` Yes, he has

`-` Has Ben ever climbed a mountain?

`->` Yes, he has

`-` Has Ben ever seen a crocodile?

`->` No, he hasn't

`-` Has Ben ever ridden a camel?

`->` Yes, he has

`=>` Cấu trúc thì HTHT

`(+)` S + have/ has + VpII

`(-)` S + have/ has + not + VpII

`(?)` Have/ has + S + VpII

`->` Yes, S + have/ has

`->` No, S + have/ has + not

`-` He/ She/ It... + has

`-` I/ We/ You/ They... + have