Question

Which sentence has a shift in verb tense?

When students ask questions in class, the teacher answered them clearly.

After the scientist studied the samples, he placed them back in their container.

You may think that the movie is too long, but I find it just the right length.

If Jenna can't find a ride to the show, she will have to take the bus.

Answer 1

When students ask questions in class, the teacher answered them clearly.

when students ask<ask is present tense>questions in class, the teacher answered<answered is past tense, to be corrected, it should be (answers)>them clearly.