—John, thank you for driving me home. —_________. See you tomorrow.
A:That's right
B:I'm afraid not
C:You're welcome
D:It's a good idea
猜谜语。
“个”字减一笔。 ——____
数百年前,我国黄土高原有茂密的森林,后来成了荒山秃岭,主要原因是( )