In this unit:

• • Mario is a good architect.
• • Mario is the Argentine architect.
• • She's a teacher.
• • She's the new teacher.
• • She's a nice person.
• • That's a good idea.
• • That's a big problem.
• • Is he a good manager?
• • He's the best manager.
• • Can you call a taxi?
• • The taxi is waiting at the entrance.
• • The Spanish tourist is lost.
    masculine
• • The Australian tourist speaks Spanish very well.
    feminine
• • Do you have a new car?
• • I like the red car.
• • Pablo is the new lawyer.
• • Pablo is a lawyer.
• • Pablo is a good lawyer.