I listened to Professor Chen-Ning Franklin Yang’s lecture about his study and physics, but I failed to get its key ______ .
_______ call me this afternoon! I’m not at home.
If you are hungry, _______ something to eat.
________ good suggestion! I haven’t heard of _______ wonderful advice for a long time.
---________ tall the red building is! ---Yes, it’s our new library.
_______interesting the news is!