Помогите!
Правильный вариант какой?
1. Он играет на пианино
a)he plays the piano
b)he is play the piano
c)he is playing the piano
d)he play the piano
2. What are you? - I am ... Engineer.
a)a
b)an
c)the
d)-
3. There ... four rooms in this house
a)is
b)am
c)do
d)are