---Good afternoon, Zhangpeng.--- A. Good afternoon, John. B. How are you? John.C. Good morning, John.
( ) You should ___________ your little brother when your mother is out.
( ) Sometimes walking is __________ than driving during the busy traffic time.
( ) My sister was born _____________ a Friday morning.
( ) Mary is a student of___________.
( ) What __________ useful book! And __________book is very interesting.