__________ the teacher explains the concept, the students won't understand ...

__________ the teacher explains the concept, the students won’t understand it.

A. Until

B. Unless

C. Although

D. Before

Select your answer:

Other quiz:

Question Tags › View

Don’t bring my bag, …. ?

A. shall you

B. do you

C. will you

D. are you

Grammar › View

A lion is ____ (dangerous) than a cat.

A. most dangerous

B. more dangerous

C. dangerous