25．Children often form some bad habits, ____________remain with them as ling as they live.
| A．some of them | B．some of which | C．any of them | D．any of which |
He is running ____ the wind towards the east of the station ____ Tom is running ____ the right.
| A．down; and; on | B．against; while; on | C．for;with;in | D．with; while; to |
I don't think you can work out the maths problem ____ the teacher's help.
| A．since | B．unless | C．because | D．without |
My uncle lives ____ 105 Huanghe Street. His room is ____ the fifth floor.
| A．at;on | B．at;at | C．on;in | D．of;to |
Mr Wang went to Nanjing ____ October,1998 and came back home ____ the morning of Nov.5.
| A．at;in | B．on;at | C．in;on | D．by;from |
My father was disappointed ____ the news.
| A．by | B．about | C．at | D．on |