Mary ______ a notebook and a pen. [ ]
A. need
B. needs
C. to need
D. to needs
答案:B
I saw the thief was _____ a man.[ ]
A. close
B. near to
C. close to
罗斯托经济成长理论中的传统社会阶段产业结构为().
A.单一农业为主导
B.单一工业为主导
C.单一服务业为主导
D.农业、工业为主导