Great efforts to increase grain producti
题型:选择题
问题:
Great efforts to increase grain production _____ if food shortages are to be avoided. [ ]
A. could be made
B. must be made
C. might be made
D. would be made
Great efforts to increase grain production _____ if food shortages are to be avoided. [ ]
A. could be made
B. must be made
C. might be made
D. would be made