They study and collect abd measure and construct ​

Builders-Строители

Объяснение:Скорее всего это...

are they your friends? -yes, they are

is he your brother? - yes, he is

can he ride a bike? - no, he can't

do you want to play with the ball? - no, i don't

does she roller-skate well? - no, she doesn't

does your friend want to play the piano? - yes, he does

1. i knew this person2. he read the book3. you do this exercise