、- Wow!This is a marvelous room!I've never known you're so artistic.- ______ A：Great,I am very art-conscious.B：Don't men

、- Wow!This is a marvelous room!I've never known you're so artistic.- ______ A：Great,I am very art-conscious.B：Don't mention it.C：Thanks for your compliments.D：It's fine.、Did you use to play the piano?- _____________________ A：Yes,I do.B：No,I didn't.C：Yes,I play it every day.D：No,I do.、I'm sorry to have kept you waiting.- _____________________ A：It doesn't matter.B：Forget it.C：My pleasure.D：It's nice of you.、Let's have a picnic by the West Lake.- _____________________ A：Never mind.B：That's all right.C：Good idea.D：You're lucky.、-- How do you do?Glad to meet you.-- _________ A：Fine.How are you?B：How do you do?Glad to meet you,too.C：How are you?Thank you!D：Nice.How are you?