The driver who died in the accident _________, but he didn’t wear the seat belt.A. could survived B. could have survivedB. must survived D. must have survived
28.The government had hoped to draw as much attention as possible to this problem but it didn't ______ that way.
27.The students wonder______ good the course will do to their future jobs.
26.He never regretted the anxious hours he had had ______ for the missing papers.
25.At present, the butter factory is still polluting the river though it ______ to stop.
24.____, the disaster in Haiti shows once again that even among the worst, there is always hope.