Don't enter the room u____ you are asked to.They are having

Don't come into the lab________ you are asked to. Don't enter into the room before they tell you to do that.修改 Don't come into the room until you_____.A.are asked to B,are Don't enter the meeting room until you( ) to tomorrow Don't enter the teachers'office.The teachers are having a __ The lions are u____.We don't like them They are very small so they don`t need to have a s____ room. Don't speak I_____ they are having classes(填单词) They are waiting for you at the front ______(enter) to the b i don't know are you feel to asked if you can still help me Don't leave the light on when you are not in the room这里的you 关于until的用法有一中考题：Don't come into the lab______ you are asked