1 They keep rabbits.
They kept rabbits.
They didn't keep rabbits.
Did they keep rabbits?
Yes, they did. / No, they didn't.
2 They try to grow cacti.
They tried to grow cacti.
They didn't try to grow cacti.
Did they try to grow cacti?
Yes, they did. / No, they didn't.
3 Others are mad about their cars.
Others were mad about their cars.
Others weren't mad about their cars.
Were they mad about their cars?
Yes, they were. / No, they weren't.
4 They train dogs to do tricks.
They trained dogs to do tricks.
They didn't train dogs to do tricks.
Did they train dogs to do tricks?
Yes, they did. / No, they didn't.
Объяснение:
In the text the author lifts a subject about student`s life.With in this subject the author examines the following questions of a grant, accommodations and social activities.The text of the talk about the student's life, about their grants, accommodations at the hostel of students which are far from the house and about social activities which takes a lot of time.During student's life it is possible to find many new friends and gain knowledge.