21. Anything _____ public interests has to be decided _____ the opinion of the majority.
A. which concerns; in B. that concerns about; on C. concerns; on D. concerning; in
22. It is really a wonder that _____ fell down from a ten-storey building to the ground without getting the least damage.
A. your furnitures B. that piece of your furniture
C. those pieces of your furnitures D. your that furniture
