—Did you know ______ just now?—Their plane didn't take off on time because of the thick fog.
—Have you ever heard of Xiao Shenyang?—Yeah. ____ funny person he is! Everyone laughed when they watched his performance.
—Don’t________ too long, or you’ll be tired the next day.—OK, mum. I’ll be ready.
---What do you think of the book?---Wonderful. In fact, I’ve never read a _______one before.
---Look! It must be Jack on the playground.---It _____ be him. Because I saw him enter the school library just now.
---Have you found the information about the famous people ______ you can use for the report?---Not yet. I’ll search some on the Internet.