Вставить артикль she is -- good teacher. is this--book which you need? i want to buy--new briefcase. -- good book is always a pleasure for me. it is -- good idea. -- picture painted by the student is beautiful.

She is a good teacher

She is a good teacher.Is this a book which you need?I want to buy a new briefcase.This good book is always a pleasure for me.It is a good idea.Thi picture painted by the student is beautiful.