Mr Smith is at the door. _______ wants to see you.

—Jack said you got a unique watch for your birthday.—Yes. Maybe it is not to the taste of      , but I like it.

Many people like to talk about generation gaps. I don't think there is  ________       in my family though.

What’s the matter with you? There’s        in your project!

＿＿＿the people have become the master of their own country＿＿＿science can really serve the people.