Which of the following sentences contains a shift in tense? (points : 5)
-reading biographies you understand how the world works.
-no, i don't think that tweed goes with stretch pants that have ruffles.
-sure, it is easy to dye clothes if you know how.
-the sky was clear and blue, and suddenly it starts raining.

The answer is the last one. It starts in past tense by saying "was" but then changes to present tense by saying "starts".

the maximum speed limit is 55 mph on a two-lane undivided highway and for vehicles towing trailers.

she was killed in her home during hurricane katrina. b.she was relocated to another town after hurricane katrina. c.she died trying to get victims of the hurricane to safety. d.she is still missing — police do not know where she is.