题目内容
E-shopping, when properly _______, can save us a lot of time and energy.
A. done B. is done C. having done D. doing
A
考查状语从句的省略。主从句主语一致，谓语动词是be动词时，主语和谓语一起省略。
练习册系列答案
相关题目
—I downtown to the shopping centre soon．Could I get you something?
—No, thanks．I will do e-shopping．
|
A．was just going |
B．am just about to go |
|
C．have just gone |
D．am just going |