Question

modals worksheet
All students _____ obey the school regulations
A. could
B. must
C. are able to
D. will​

Answer 1

Must is the answer

I hope I will help you

Answer 2

Option(B)- Must

All students(must)obey the school regulations.

• Obey is an order so it has to be followed.
• Must mean a necessity or possibility.
• The students are bound to follow the regulation.
• Could means they can which changes the meaning of the sentence.
• Able to means possible but as obey is an order, so the objective of the sentence will change.
• WIll mean expressing a request, so it will not fit in the sentence.