当对方帮了你的忙后，你应该说“________”。
A. OK.
B. I am OK.
C. How are you?
D. Thanks!
—What color is the key?
—________.
A. It's a key
B. It's a yellow
C. It's yellow
D. It's a black
I have ________ orange.________ orange is yellow.
A. a; The
B. an; The
C. the; An
D. an; An
I ________ Bob.What ________ this in English?
A. am; am B. is; is
C. am; is D. are; are
下午遇到老师，应该怎么样打招呼？________
A. How old are you?
B. Good morning!
C. Good afternoon!
D. Good night!
—Good morning, Frank!
—________！
A. I'm not good, Alice
B. Hello, Frank
C. Bye, Alice
D. Good morning, Alice
