One casual leave per month could be taken.
One casual leave per month could be taken.
One casual leave per month can be taken.
One casual leave per month can be taken.
One casual leave per month is to be taken.
One casual leave per month is to be taken.
One casual leave per month will be taken.
One casual leave per month will be taken.
Correct Answer:
One casual leave per month can be taken.
One casual leave per month can be taken.