题目内容：

newcomers walked round and round.They didn't know _______
The newcomers walked round and round.They didn't know _______ ( )
A.where they will go B.they will go where
C.where will go D.where to go

优质解答

答案选 D.where to go
译：那些新来的人走了一圈又一圈.他们不知道该去哪儿.
析：主过从过,时态一致.从三个will就可以排除ABC.