Question

i will lend you the book,（ ）you return it

i will lend you the book,（ ）you return it i will lend you the book,（ ）you return it me in time.
A on condition that B in case
请问A和B不是都可以引导条件状语从句吗？为什么选A呢

Answer 1

按照句子的意思。a是说只要你按时还，我就借给你。b的意思是以防你还书，我就借给你