[单选题]Directions: In this part there is a sentence with four choices marked A, B, C and D. Choose the one that best completes the sentence.Most probably it will be another 6 hours _____ you can have next meal, so each of you must have your stomach full.
A
since
B
when
C
after
D
before
正确答案：D
题目解析
it will+时间段+before为固定搭配，表示......之后才能......结合句子可以确定该句式符合句意，故选D。since——自从；when——当......时候；after——......之后，均不符合句意，可排除。
