all of us enjoy eating hamburgers we can’t eat too much of junk food.A. AsB. BecauseC. Al

问题补充：

all of us enjoy eating hamburgers, we can’t eat too much of junk food.

A. AsB. BecauseC. Although

答案：

解析：此题重点考查although引导的让步状语从句，表示尽管…,还是…