国家开放大学 / 综合英语(3)
正确率:100%
The number of motorcycles _ _ _ _ _ lest the roads become too crowded.
A.are to be limited
B.is to be limited
C.have to be limited
D.to be limited
A.are to be limited
B.is to be limited
C.have to be limited
D.to be limited
参考答案:
佳题速递: