-Do you think we can get there on time?
-Yes，_______ the truck doesn’t break down.
A. even if B. unless
C. until D. so long as
-Do you think we can get there on time?
-Yes，_______ the truck doesn’t break down.
A. even if B. unless
C. until D. so long as
D
so long as=if。unless"除非"…unless the truck breaks down.