By the time he realizes he ____ into a trap, it’ll be too late for him to do anything about it.
#104957
A
walks
B
walked
C
has walked
D
had walked
推荐题目
She said that I could use her car while mine _________________.
#102926
A
was repaired
B
repaired
C
was being repaired
D
would be repaired
The country life he was used to ______ greatly since 1998. 
#102492
A
change
B
has changed
C
changing
D
had changed
--- _____ the change of the schedule ______?--- Oh, God! I forgot all about it. I’ll do it right now.
#100466
A
Has, been announced
B
Was, announced
C
Has, announced
D
Had, been announced
 —Why does the lake smell terrible?—Because large quantities of water           .
#103559
A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted