23. If you live in the country or have ever visited there, ______ are that you have heard birds singing to welcome the new day.
The new law states that people _______drive after drinking alcohol.
Sarah looked at finished painting with satisfaction.
------Did you go to the show last night?------ Yeah. Every boy and every girl in the area ____ invited.
------ May I smoke here?------ If you____, that's the smoking section over there.
------How do you find James Cameron's 3D version of Titanic? ------Fantastic! It can't be _______ and has brought us a wonderful experience.