I.Choose the best answer.
1.Every morning Mr Smith takes a ____to his office.
A.20 minutes walk   B. 20 minutes’s walk
C.20-minute walk    D.20-minute walk
2.I want to buy___book.
A.another such    B. such another
C.a such         D.so a
3.Mary enjoys ____very much.
A.dancing and sing   B. to dance and sing
C.sing and dance     D.singing and dancing
4.A big crowd ____people ____waiting for him.
A.of , is  B.of , were  C.with, are  D.and ,were
5.He has lived here ____.
A.since a week ago   B.for a week ago
C.in 2000      D. before 2000