Question

1. which sentence uses a modal verb correctly?

a. he musts finish his work.
b. he must finish his work.
c. he musted finish his work.
d. he finishing must work.

1. \can\ is used to express:

a. past obligation
b. ability
c. future certainty
d. necessity

1. which modal shows strong obligation?

a. might
b. should
c. must
d. could

1. choose the sentence showing permission:

a. you may leave early.
b. you must leave early.
c. you should leave early.
d. you cant leave early.

1. \should\ is used for:

a. advice
b. past ability
c. strong necessity
d. permission

1. which modal verb expresses possibility?

a. must
b. might
c. should
d. will

1. choose the correct form:

a. she can to play piano.
b. she cans play piano.
c. she can play piano.
d. she playing can piano.

1. which sentence expresses future intention?

a. i will call you later.
b. i may call you later.
c. i should call you later.
d. i can call you later.

1. \could\ is often used to express

a. present ability
b. advice
c. past ability
d. strong obligation

1. you ___ wear a helmet when riding a bike

a. might
b. should
c. will
d. would

1. which sentence shows lack of permission?

a. you may not enter.
b. you must enter.
c. you should enter.
d. you will enter.

1. \ought to\ is closest in meaning to:

a. must
b. should
c. will
d. can

1. choose the correct negative modal form

a. she musts not go.
b. she must not go.
c. she musted not go.
d. she must nots go.

1. which sentence expresses polite request?

a. can you open the door?
b. could you open the door?
c. you should open the door.
d. you must open the door.

1. which modal verb expresses certainty?

a. might
b. could
c. must
d. may

1. choose the correct sentence:

a. he will to go later.
b. he will going later.
c. he will go later.
d. he wills go later.

1. \may i?\ is used for:

a. asking permission
b. stating ability
c. giving advice
d. expressing necessity

1. which sentence uses a modal incorrectly?

a. they might call tonight.
b. she can dance well.
c. you should to study

Explanation:

1. En inglés, el verbo modal "must" no tiene forma en tercera persona del singular (sin -s) y no tiene forma pasada. La estructura correcta es "must + verbo en infinitivo sin to".
2. "Can" se usa para expresar habilidad.
3. "Must" muestra una fuerte obligación.
4. "May" se usa para dar permiso.
5. "Should" se usa para dar consejo o recomendación.
6. "Might" expresa posibilidad.
7. La estructura correcta con "can" es "can + verbo en infinitivo sin to".
8. "Will" se usa para expresar intención futura.
9. "Could" a menudo se usa para expresar cortesía o peticiones.
10. "Should" se usa para dar una recomendación (en este caso, usar un casco al montar en bicicleta).
11. "May not" expresa falta de permiso.
12. "Ought to" es similar en significado a "should".
13. La forma negativa correcta de "must" es "must not".
14. "Could" se usa para hacer una petición más cortés que "can".
15. "Must" expresa certeza.
16. La estructura correcta con "will" es "will + verbo en infinitivo sin to".
17. "May I?" se usa para pedir permiso.
18. La estructura correcta con "should" es "should + verbo en infinitivo sin to" (sin "to").

Answer:

1. B. He must finish his work.
2. B. Ability
3. C. Must
4. A. You may leave early.
5. A. Advice
6. B. Might
7. C. She can play piano.
8. A. I will call you later.
9. (No se ve la opción correcta en el texto, pero "could" se usa para cortesía)
10. B. should
11. A. You may not enter.
12. B. Should
13. B. She must not go.
14. B. Could you open the door?
15. C. Must
16. C. He will go later.
17. A. Asking permission
18. C. You should to study (debería ser "You should study")