Use Transitions to Signal Shifts Practice Test

Two versions of the same narrative are shown below.

Version 1:

Amir finished his math quiz and shoved it into the tray. He heard someone whisper his name. He was outside by the bike rack, gripping his handlebars. Chen was asking if he wanted to trade lunches.

Version 2:

Amir finished his math quiz and shoved it into the tray. After class, outside by the bike rack, he gripped his handlebars. Chen asked if he wanted to trade lunches.

Which version more clearly signals the shift in time and setting, and why?​

Read this narrative excerpt:

Carlos and Maya rehearsed their lines in the auditorium. The stage lights made Maya’s forehead shine.

Later, Carlos was in the cafeteria holding a tray of spaghetti. He spotted Maya at the far table, laughing like she hadn’t forgotten a line five minutes ago.

Finally, they were backstage again, listening to the principal’s welcome speech through the curtain.

What is the main problem with the transitions in this excerpt?​