英语单选1.The customers'needs can't be () by the company at once

英语单选
1.The customers'needs can't be () by the company at once.
A.agreed B.done C.allowed D.met
2.I'd like to rent a house ,modern ,comfortable and ()in a quiet neighbourhood.
A.in all B.above all C.after all D.at all
3.The village is far away from here indeed.It's () walk.
A.a four hours B.a four hour's C.a four-hours D.a four hours'
4.Little () about her illness and still works very hard at her lessons.
A.Mary knows B.did Mary know C.does Mary know D.Mary didn't know about something
5.It is Sunday () we often go fishing.
A.at which B.when C.that D.in which
6.() an engineer,so he knows exactly what to do .
A.Being B.Having been C.As D.He is