——Why did Tan become interested in the sounds of nature?——__________he thinks the best music comes from nature.
. —What’s the date today? —______________
My mother wants ______ some ______ at the supermarket.
All his families are ______ at the ______ news.
—May I borrow your bicycle? — ______________.
Beijing is ______ the north of Gansu and ______ the north of China.