They don’t feel safe in our town at night because it         so dangerous. There’s a robbery every week now.  
#102570
A
becomes
B
became
C
has become
D
had become
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All the preparations for the task _________, and we’re ready to start.
#99042
A
complete
B
have completed
C
had been completed
D
have been completed
By the 1920s, Howard Carter ____ an explorer.
#99036
A
has become
B
had become
C
became
D
would become
(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
Profits in his company went up by 25% last year,and _____ so far this year though the  financial situation is bad.
#104019
A
haven’t decreased
B
didn’t decrease
C
haven’t been decreased
D
weren’t decreased