The doctors did all that they _______ to save the patient [could,must,need] - English - Gap Filling/Sentence Completion

Question

The doctors did all that they _______ to save the patient
[could,must,need]

Sripriya · Accepted Answer

Dear Student,

The answer to the blank is:

The doctors did all that they could to save
the patient

Regards

The doctors did all that they _______ to save the patient. [could,must,need]