Mlutiple choice option [At 7 o’clock this morning, my father...]

[sb70012]

At 7 o’clock this morning, my father ……. in the garden.

a)is working
b)worked
c)was working (Answer Key)
d)works

Hi,
Can options "a" and "be" work too?
I mean:

At 7 o’clock this morning, my father is working in the garden. (Maybe we talk at 5 AM about future)
At 7 o’clock this morning, my father worked in the garden. (Maybe we talk at 9 PM about past)

Any thoughts?

 

[bhaisahab]

At 7 o’clock this morning, my father ……. in the garden.

a)is working
b)worked
c)was working (Answer Key)
d)works

Hi,
Can options "a" and "be" work too?
I mean:

At 7 o’clock this morning, my father is working in the garden. (Maybe we talk at 5 AM about future)
At 7 o’clock this morning, my father worked in the garden. (Maybe we talk at 9 PM about past)

Any thoughts?

Yes, a case could be made for all three.