By the time he realizes he ______ into a trap, it’ll be too late for him to do anything about it.
#102277
A
walks  
B
walked
C
has walked
D
had walked
推荐题目
(2014·日照模拟)It’s really a small world!I________we would meet here.
#99131
A
don’t think 
B
haven’t thought
C
didn’t think 
D
won’t think
--- I ____ so busily recently that I ____ no time to help you with your maths.---That’s OK. I can manage it by myself. 
#100194
A
had been working; had had
B
have been working; had
C
have been working; have
D
am working; will have
-- How are you planning to travel to Shanghai?  --- I ______ yet, but I ______ taking a train.
#104093
A
didn’t decide; am considering
B
haven’t decided; consider
C
haven’t decided; am considering
D
hadn’t decided; have considered