How ___________ you?[ ]
A. is
B. Are
C. are
答案:C
- Will you get there by _____ train?
- No, I'll take _ taxi.
A./; a
B.a; the
C./;/
D.the; a .
铝、铁、铜、银四种金属导电性依次增强的是( )
A.铝、铜、银、铁
B.银、铁、铜、铝
C.铝、铜、铁、银
D.铁、铝、铜、银