Soon they got to a point where two roads met; they didn’t know .A. which road to goB. what

问题补充：

Soon they got to a point where two roads met; they didn’t know .

A. which road to go

B. what road to go

C. which road to take

D. what road to take

答案：

A. which road to go

B. what road to go

(答案→)C. which road to take

D. what road to take

解析：考查宾语从句.句意:不久他们走到一个两条路交汇的地方,他们不知道走哪一条路.go

不能直接接宾语，此处take是采取的意思。What意思是什么，故选C。