(since/ for)-- how long have you benn here?(since/ for)-- how lon_英语解答

(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?

人气：473 ℃　时间：2020-01-31 14:34:43

解答

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