let's get in the wheat before the sun_.

问题描述:

let's get in the wheat before the sun_.
A.will go down B.was going down
C.has gone down D.goes down

D.goes down
按照规律发生的,尤其是客观规律要用一般现在时.
比如:北京到上海的火车7点开.因为每天的时间都一样的,用现在时态.