С людьми - am / is / are. Am употребляется с I, Is с He / She / It, Are используется с We / They / You ( мы / они / вы ). Если неодушевлённый предмет, то it. Если много предметов ( не важно одушевлённых или неодушевленных, всё равно используется they - они ).
2) - We've got two new students in our class.
- What are they like?
- They're very nice.
3) - My sister has got a new boyfriend.
- What is he like?
- He's very quiet.
4) - I've got a computer game called Help!
- What is it like?
- It's quite difficult.
5) - I've got five brothers
- What are they like?
- They are noisy.
6) - Our new English teacher is called Mrs Green.
- What is she like?
- She's great.