问题 选择题
—What do you think of it?
—Well,it’s worth doing ________ the result is satisfactory.
A.the momentB.as soon as
C.onceD.so long as
答案

D

解析 so long as意思是“只要”,引导条件状语从句。

单项选择题 A1/A2型题
单项选择题