Look!Here comes our school busNo hurry.Do not get on it _ it has stopped (选择)A.until B.after C.since D.when说明理由

问题描述:

Look!Here comes our school bus
No hurry.Do not get on it _ it has stopped (选择)A.until B.after C.since D.when说明理由

A
not...until是固定搭配
not...until是只到.才.
根据题目意思,可选A