Question

Which sentence contains an inappropriate shift in tense?

A.
When the buzzer sounds, everyone in the factory is ready to go home.

B.
Occasionally, Steve's boa escapes and startles someone in the kitchen.

C.
David ran into the room when he hears the music.

Answer 1

The sentence which contains inappropriate shift in tense is C, because in the first part of the sentence there is a past tense 'ran', which means that the verb in the second part of the sentence also has to be in the past: hears should shift into 'heard'.