It's a rule that everyone ______ take a shower before swimming.
is allowed to
has to
I ______ go to school today because I don't have any lessons.
don't have to
mustn't
Heat before serving.
can
have to
Children ______ enter the pool without an adult.
aren't allowed to
have to
Do not eat more than the recommended daily intake of salt.
can
shouldn't
Not suitable for people with nut allergies.
mustn't
don't have to
Do I ______ drive on the left or the right?
must
have to
That sign says 'no parking'. You ______ park here.
can't
don't have to
Not suitable for vegetarians.
shouldn't
don't have to
Not recommended for diabetics.
allowed to
shouldn't
You ______ wear black trousers and a black shirt in this job. It's obligatory.
must
can
Multipack of six- not for sale separately.
not allowed to
don't have to
Students ______ talk in the library. The rule says 'silence at all times'.
shouldn't
mustn't
Junk food is bad for you. You ______ eat more vegetables.
should
can