We___to close the windows before we left the lab?A:tell B:to

We___to close the windows before we left the lab?A:tell B:to We must keep all the windows -----.A close B closed Be ----to close the windows before you leave. Students__________ to close the windows before they leave th I____(close)the windows before I leave. Close the windows well before going to bed.close为什么要用原型? The old man likes to sleep with the windows _____. A.close B 1.Tell him ___ the window.A.to close not B.not to close C.to 关于before( )the windows well before ( )to bed.用close和go的正确形式填 Close the windows well before going to bed.为什么before后要跟动词ing Don't forget to close all the windows before you leave the c Be s＿ to close the windows before you leave the classroom