28.
A. used
B. acknowledged
C. accessible
D. possessable
正确答案是
29.
A. increase
B. trend
C. change
D. example
正确答案是
30.
A. per head
B. per capita
C. each person
D. percentage
正确答案是
31.
A. either
B. neither
C. such as
D. for example
正确答案是
32.
A. rich
B. enriched
C. plentiful
D. full
正确答案是
33.
A. requesting
B. requiring
C. to require
D. to request
正确答案是