( ) --What people often do Christmas? --They give presents to each other. A. do, on B. does, at C. do, at
Lily:? Mike:I'm six.
Tom:,LiLei. LiLei:Nice to meet you, too.
Sarah:How are you, Peter? Peter:
Meimei:? Kate:My name's Kate.
Alice:Hello, Good morning! Lucy: