问题
选择题
________ by a greater demand for vegetables, farmers have buih more green houses. [ ]
A. Driven
B. Being driven
C. To drive
D. Having driven
答案
答案:A
________ by a greater demand for vegetables, farmers have buih more green houses. [ ]
A. Driven
B. Being driven
C. To drive
D. Having driven
答案:A