来看看,why这小文章用一般现在时?两空格Oneafternoon,amanridesuptotheUS-Mexicoborderonhisbike,carryingalargebag.Theguardstopshimandasks,"Whatisinthebag?"两空格"Sand,"repliestheman.两空格"We'llseeaboutth

Question

来看看,why这小文章用一般现在时?
两空格One afternoon,a man rides up to the US-Mexico border on his bike,carrying a large bag.The guard stops him and asks,"What is in the bag?"
两空格"Sand,"replies the man.
两空格"We'll see about that,"says the guard.He opens the bag,and finds nothing but sand.The guard lets the man cross the border.
两空格The next day,the same thing happens.The guard asks the man,"What have you got in the bag?"
两空格"Sand,"replies the man.
两空格The guard checks the bag and finds that again the man is telling truth.
两空格This kind of thing repeats daily for 3 years.Finally the man doesn't come and a week later,the guard meets with the man in a bar."Hey,"says the guard,"I know you were smuggling something.Just between you and me,what was it?"
两空格The man drinks his beer and says,"Bicycles."

Answer 1

就像我们一般讲故事一样,一般都是这样的.
举个例子你就明了了一般现在时的方便之处：
如果里面要用完成时,总体时态为过去时的话是不是要改为过去完成时呢?从此牵扯到很多时态变化.