—We’d better not eat too much junk food it is delicious.—I agree. It’s bad for our health

问题补充：

—We’d better not eat too much junk food it is delicious.

—I agree. It’s bad for our health.

A. if B. although C. because

答案：

解析：考查从句的引导词。“我们最好不要吃太多的垃圾食品，尽管垃圾食品很美味。”“同意。垃圾食品对健康有害。”if“如果”；although“尽管”；because“因为”。句意表示的是让步。故选B。