1. As secretary of transportation from 1975 to 1977, William Coleman worked to help the bankrupt railroads in the northeastern United States solved their financial problems.
此题选C,但A是否也错了呢?secretary是可数名词前面是否应加the?
2. Among the first plants to grow on the land regions of the Earth _____, which in prehistoric times grew to immense size
(A) were horsetail rushes
(B) horsetail rushes
(C) horsetail rushes were
(D) and horsetail rushes
答案:A
介词短语的用法? 此句缺少主句,选A的话主句主语就是Among.....the Earth,这样可以吗?