问题
Across all media，people are debating about________we need to keep track of every school bus on China’s road.
A:how
B:whether
C:which
D:where
B:whether
C:which
D:where
正确答案是：
同类题型
Good morning，Miss Gao! — ________!
I’m calling about the apartment you __the other dayCould you tell me more about it?
It’s very strange that _____ money we make, the poorerwe feel we are.
The real evidence is the least of our worries ______ we have known about it.
Is ittrue that light travels in a straight line and never ______ it hits somethingthat reflects it.