单项选择题
A.play B.to play C.playing
Wang Li is（）a new marketing campaign at the moment.A.pl...
单项选择题Wang Li is（）a new marketing campaign at the moment.
A.plan B.planing C.planning
The Business Banking Department is on（）floor.A.SecondB....
单项选择题The Business Banking Department is on（）floor.
A.Second B.the two C.the Second
He's responsible（）the central computer system.A.inB.for...
单项选择题He's responsible（）the central computer system.
A.in B.for C.of
