This computer is Mike's . Which ______ is your computer? [ ]
A. a
B. an
C. one
D. ones
答案:C
Everyone is here, __________?[ ]
A. aren't they
B. are they
C. is everyone
D. isn't he
管理的基本职能包括( )。
A.计划
B.组织
C.决策
D.激励
E.协调