I"ll lend you my computer ___you promise to take care of it.A unless B as C while D if
问题描述:
I"ll lend you my computer ___you promise to take care of it.A unless B as C while D if
选 A还是D?
为什么不能选
答
D if.
如果你答应保护好我的电脑,我就将电脑接给你.
选A的话应该是:
I won't lend you my computer unless you promise to take care of it.
unless之前是要用否定的,强调一个转折.