JAMB - English Language (1981 - No. 33)
fill in the blank spaces in the following sentences making use of the best of the five options :
Visitors…. Pass beyond this point. It is forbidden
needn’t
don’t have to
could not
cannot
must not
Explication
'Must not' is used in a sentence to indicate that something is forbidden. For example; You must not cross the road until the light goes green.