题目内容
He is rather difficult to make friends with，but the friendship of his，once ________, is more true than any other．
[ ]
A．gained
B．to gain
C．having gained
D．gain
答案：A
解析：
解析：
|
once可引导时间状语从句表条件，意思是“一旦……”.此空填gained，其前省略了it is.在时间、条件、让步状语从句中，如果从句的主语和主句的主语相同，从句中谓语动词义含有be的某一种形式，可以省略从句中的主语或be动词.答案为A．例如： Once seen，it will never be forgotten．一旦见到，就永远不会忘掉. The research is so designed that once begun nothing can be done to change it．调查是预先计划的，一旦开始就无法改变. |
练习册系列答案
相关题目
He is rather difficult to make friends with, but his friendship, _____ is more true than anyone else’s.
| A．Once gaining | B．Once gained | C．Once is gaining | D．Once he gained |
He is rather difficult to make friends with, but his friendship, _____ is more true than anyone else’s.
|
A．Once gaining |
B．Once gained |
C．Once is gaining |
D．Once he gained |