(since/ for)-- how long have you benn here?(since/ for)-- how long have you benn here? --__(since/ for) vhalf past three.选择哪个?为什么?
问题描述:
(since/ for)-- how long have you benn here?
(since/ for)
-- how long have you benn here?
--__(since/ for) vhalf past three.
选择哪个?为什么?
答
since。 区别:since自从。。。以来 后面跟时间点。 for后面跟时间段,表示动作持续了多久。
答
Since 自从3点半开始
since+时间点 从XX时候开始
for+一段时间 持续了XX时间