Ответ:

is, isn't, are, aren't, are, Is, isn't, Are, are.

Ответ:

1. My friend is tall and thin

2. His father isn`t at home. He is at work.

3. Our players aren`t fast. They are slow.

4. Their children are at the gym.

5. Is your brother a doctor? No, he isn`t.

6. Are your friends strong? Yes, they are.

Объяснение:

he/she/it —is/isn`t

We/they —are/aren`t

1. My friend — he

2. His father — he

3. Our players — they

4. Their children — they

5. your brother — he

6. your brother — they