1. ______useful dictionary for beginners of English! Where did you get it?
2. ________ good advice you’ve told me!Thank you very much.
3.________ it is to chat with our friends on the Internet!
A．What great funny
B．What great fun
C．What a great fun
D．How great funny
4. — ___________ hard Tom works!—It's very kind of you to say so.
C. What a
D. How a