In the sentence “Society in general, and teenagers in particular, must start to take sleep seriously” (l.40 and 41), the verb “must” can be correctly replaced with should without changing in the meaning of the text.
In the sentence “Society in general, and teenagers in particular, must start to take sleep seriously” (l.40 and 41), the verb “must” can be correctly replaced with should without changing in the meaning of the text.
