4. Choose the correct variant
A) The cat isn’t hiding from the dog, is it?
B) The cat hiding from the dog, isn’t it?
C) The cat is hiding from the dog, doesn’t it?
D) The cat is hiding from the dog, isn’t it?
E) The cat aren’t hiding from the dog, aren’t it?
5. Find a/the mistake(s) in this sentence:
Scientists which study animal behavior thinks that only human beings get headache.
A) which
B) behavior
C) get
D) thinks
E) study
6. Choose the negative sentence(s)
A) Our house is not located in the center of the town.
B) it was founded in 1856
C) I can’t come to the meeting
D)We will go to the theatre tomorrow.
E) Sarah’s never worked in a big company.
