The police were seeking more information to find out________ killed the rich merchant.
A. who it was that B. who was it that
C. it was who D. who was it
Had they known what was coming next, they _________second thoughts.
A. may have B. could have
C. must have had D. might have had
Studying Tom’s menu, I found that many of the items are similar to ________ of McDonald’s.
A. those B. ones C. any D. all
People who do not smoke have less ______of suffering from lung cancer than those who do so.
A. potential B. pattern
C. preference D. prejudice
This factory produced much dirty water, which resulted in a wide _______ of environmental problems.
A. branch B. range
C. species D. wave
Please tell me how the accident _______. I am still in the dark.
A. came up B. came out
C. came to D. came about
