подскажите, пожалуйста, с модальными глаголами gen.

[Molly Brown]

Задание такое:

Modal verbs of probability
Present probability
Respond to the statements or questions using the words in brackets. Put verb in its correct form.

exp. Harry is packing suitcase (must, go on holiday)
He must be going on holiday

А вот тут не понятно как переделать:

3. Who`s at the front door? (will, Tom)

5. Why are all the lights on in their house? (could, have, party)

6. James has been working all night. (must, deadline to meet)

признательна

[Тимурыч]

3. It/this will be Tom.
5. They could be having a party.
6. He must have a deadline to meet.

[Molly Brown]

спасибо. странно как-то почему они использовали will, это ведь не модальный глагол

[_Ann_]

1. would be (вероятность)

[vasya_krolikov]

ещё как модальный, как и shall, should, would, have, be .....