as soon as since when while区别
问题描述:
as soon as since when while区别
如题
as soon as
since
when
while
答
as soon as:即时,后面一般加第三人称单数,但也可以用将来时态,主要看前面的时态.
since:由于,要读懂句子的意思,是一个转折关系,这时用since
when:后面一般加过去式
while:后面一般加现在进行式