1.
those books
this bag
these cars
those stars
that tree
this river
that computer
this apple
those flowers
2
2) that
3) these
4) Is this
5) this
6) those
7) Are these
8) Is that
9) this
10) This is my dog and that dog is his.
11) These
12) this
13) that (предмет в отдалении, поэтому "та звезда")
14) That
15) These
С сущ. в ед. числе используется this или that, а если сущ. во множ. числе - these или those