CDE排除,留下了AB,因为原文说的是contractor and engineer两个人,A是both,B是each。OG上SC的review上有一句说:both代两个人,each代3个人以上。所以立即选了A。
是不是断章取义了。
The contractor and the engineer agree on the cause of the bridge failure, but both blame the other.
A both blame the other
B each blames the other
C each blame the other person
D both are blaming the other
E each blames one another