7 a) Complete with: do, does, don't or
doesn't.
A:you like peacocks?
B: Yes, I
A:your friend eat fruit?
B: No, she
A: they live in Brazil?
B: No, they
A: Bob sleep a lot?
B: Yes, he ​

A: you like peacocks?
B: Yes, I do.

Explanation: "Do" is used as an auxiliary verb to form questions and negative statements in the present simple tense for the pronoun "you". In this case, the question is asking about the person's preference for peacocks, so the correct choice is "do".

A: Does your friend eat fruit?
B: No, she doesn't.

Explanation: "Does" is used as an auxiliary verb to form questions and negative statements in the present simple tense for the pronouns "he", "she", and "it". In this case, the question is asking about the eating habits of the friend, so the correct choice is "does". Since the answer is negative, we add "not" to the auxiliary verb, making it "doesn't".

A: Do they live in Brazil?
B: No, they don't.

Explanation: "Do" is used as an auxiliary verb to form questions and negative statements in the present simple tense for the pronouns "they", "we", and "you" (plural). In this case, the question is asking about the living location of a group of people, so the correct choice is "do". Since the answer is negative, we add "not" to the auxiliary verb, making it "don't".

A: Does Bob sleep a lot?
B: Yes, he does.

Explanation: "Does" is used as an auxiliary verb to form questions and negative statements in the present simple tense for the pronouns "he", "she", and "it". In this case, the question is asking about Bob's sleeping habits, so the correct choice is "does". Since the answer is affirmative, we don't need to add "not" to the auxiliary verb.