Question

7 choose the word that best completes the sentence.
kids in france are not allowed to bring their own lunch from home. ______ they have a doctors prescription for a medical condition.
a unless
b but
c after
d so

Explanation:

The sentence describes a general rule (kids can't bring home lunches) with an exception (medical prescription). "Unless" is used to introduce an exception to a general statement, which fits the context. The other options don't convey this conditional exception: "but" shows a general contrast, "after" refers to time, and "so" indicates a result.

Answer:

A. unless