1.—Good morning! --- ___________.
A. How are you? B. Good morning! C. Hello! D. Thank you！
2.—What’s this in English? ---___________.
A. It’s a pen. B. Its a pen. C. It’s pen. D. This is a pen.
3. This is ______key and that(那个) is ______orange.
A. a; a B. an; an C. a; an D. an; a
