Question

He _____ sometimes force himself to work on till late in the night,only to find himself unable to do anything the next day.
i.could
ii.used to
iii.would
iv.should

Answer 1

Answer:

would

Explanation:

would means he used to it is just a type of different form I can't explain but the right answer is would or used to but it is confirm that they are talkin about past rense