A．How old are you?
B．Good morning!
C．Good afternoon!
D．Good night!
15．I ________ Bob.What ________ this in English?
A．am; am B．is; is
C．am; is D．are; are
16．I have ________ orange.________ orange is yellow.
A．a; The
B．an; The
C．the; An
D．an; An
17．—What color is the key?
—________.
A．It's a key
B．It's a yellow
C．It's yellow
D．It's a black
18．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!
19．—How are you?
—________
A．Fine, thanks.
B．How are you?
C．How do you do?
D．Nice to meet you.
20．—Spell it, please.—________.