1.Dont leave the room unless I tell you to=Dont leave the room_____I_____tell you to

题目

1.Dont leave the room unless I tell you to=Dont leave the room_____I_____tell you to
2.Do what he or she tells you to do=Do______ ______he or she tells you to do
3.I find it hard to remember some American expressions=I have some___ ___ ___some American expressions
4.I was just going to leave when I heard myself called from behind=I
was____ ____leave when I heared someone_____me from behind

答案

1.if don't
2.all that
3.difficulty in remembering
4about to