bilingual exam part 4

Completar estas frases con la forma correcta de 'have to' para expresar obligación

1. Doctors ............................................ (treat people).
2. Teachers...........................................(be very patient).
3. A secretary .........................................(be organised).
4. Postmen/women............................................(deliver letters).
5. Sportsmen/women..........................(train very hard).

Ahora escribir estas frases en negativo.

1. He has to work in a bank........................................................................
2.I have to work on Saturdays.......................................................................
3. They have to study a lot.........................................................................

Ahora escribir las frases arriba en forma interogativo.

1. ...............................................................in a bank?
2. .............................................................. on Saturdays?
3. ...............................................................a lot?