一．单选选择（每题一分，共20分）
（ ）1. ________.Is this your pencil case?
A. Sorry B. I’m sorry C. Excuse me D. Hello
（ ）2.—Are these your brother? --_________
A. Yes, they’re B. No, they are
C. Yes, they are D. Yes, they aren’t.
（ ）3.This is _______pen._______ pen is nice
A. an, The B. my, The C. a, A
