I)
1. I AM ... years old
2. Students ARE happy to start the new study year.
3. Ali IS absent today.
4. We ARE interested in learning English.
5. Nadia IS a hard working student.
5. The school IS large.
("am" se usa para "I", "are" se usa para "you", "we" o "they" e "is" se usa para "he", "she" o "it").
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II)
1. You MUST come on time to school.
2. The light is red. All the cars MUST stop.
3. Muslims MUSTN'T drink alcohol.
4. Muslims MUST pray five times a day.
(must expresa obligacion, mustn't expresa algo que es prohibido).
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II)
1. It's raining. You need to take AN umbrella.
2. I have to buy A copybook.
3. There is A car in front of the school.
4. Ahmed wants to be AN actor.
("a" se usa cuando la palabra siguiente empieza por consonante y "an" cuando empieza por vocal).
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III)
1. I AM STUDYING English at the moment....
2. Ahmed DOESN'T GO to school on Sunday.
3. My father IS WORKING now.
4. Nabil REVISES his lessons every day.
5. She TRAVELS every summer to Florida.
6. Students ARE TAKING a diagnostic test at this time.
(El present continuous indica acciones que pasan cuando hablamos y el simpre present se usa para expresar acciones diarias o situaciones permanentes).
