1.____your brother_____ in Red Cross for a long time?

1.____your brother_____ in Red Cross for a long time?
Yes,he joined it ten years ago.
A.Has,been B.Have,joined C.Has,joined D.How,long
2.He seldom has lunch at school,___?
A.didn't it B.did it C.was there D.hasn't it
3.They needed some more hands todo the work,____?
A.didn't B.neededn't C.mustn't D.needn't
4._____progress they have made in studies!
A.What great B.What a great C.How great D.How a great
5.Shall I close the window?
No,____it open.
Atry B.make C.leave D.push