A:Li Lei, is my brother. are his books.B:Nice to meet you, Li Lei.
An ________ boy came to our class yesterday.
Some families raise cows, and _________ grow wheat.
I am a new student in this school, so I have ________ friends here.
I happened to meet an old friend of __________ in the supermarket.
We live _______ a wonderful world _______ a lot of amazing things.