This is an illness that may result in total blindness if .
#84319
A
being left untreated
B
left untreated
C
not left treating
D
not having left untreated
推荐题目
The most destructive element in the human mind is fear．Only when we are no longer afraid _______ to live．
#81610
A
we are beginning
B
begin we
C
we begin
D
do we begin
East of the mountain ______ two towns, ________ my hometown.
#81421
A
lie; one of which is
B
lies; where lies
C
lies; one of which is
D
lie; that is
Only when I got here _________ that I had made a big mistake.
#82970
A
did I realize
B
I realized
C
I have realized
D
have I realized
--Have you got any particular plans for the coming holiday?-- Yes. ______, I’m going to visit the Palace Museum.
#82046
A
If necessary
B
If possible
C
If any
D
If ever
“Never for a second，”the boy says，“________that my father would come to my rescue.” (2013·江苏，27)
#79684
A
I doubted
B
do I doubt
C
I have doubted
D
did I doubt