— Do you think we can get there on time?—Yes the car doesn't break down. A. unlessB. in c

问题补充：

— Do you think we can get there on time?

—Yes, the car doesn break down.

A. unless

B. in case

C. so long as

D. once

答案：

A. unless

B. in case

(答案→)C. so long as

D. once

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