Question

'this' or 'these'

1.____ film is very boring
2.Whose copies are ____?
3.____ two people are my freinds ​

Answer 1

1. This film is very boring (фильм - единственное число, поэтому "this")

2. Whose copies are these? (copies - множественное число)

3. These two people are my friends (people - множественное число)