Поставьте слова в нужном порядке 1) in we the classroom we 2) Mary new a has pencil got 3) Old children how are your? 4) Friend are my engineers

we were in the classroomMary has got a new pencilHow old are children?My friends are engineers.

1) We are in the classroom.    2) Mary has got a new pencil.3)How old are your children?4) Engineers are my friend(s).  (в задании ошибки инженеры множ. число а друг ед. число так не должно быть) в 1 предложении вообще нет глагола.