logo - 刷刷题
下载APP
【单选题】

--- Robert is indeed a wise man.
---Oh, yes.How often I have regretted_______his advice!

A.
to take
B.
taking
C.
not to take
D.
not taking
举报
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】Every possible means ____, but none ____ successful.

A.
has tried; has proved
B.
tried; proves
C.
has been tried; proves
D.
is being tried; is proved