Business B1 · Unit 8 · Case study

Case Study 8 · The weekend the app broke

Duration: 30 min

Warm-up

Warm-up · Prime the case (5 min, solo)

Two quick drills that use Unit 8 language: (A) a past-continuous incident line, and (B) a 'used to' process-change sentence.

Drill 1 — past continuous + past simple

Combine each pair into ONE incident line using past continuous + past simple.

  1. The team / test the release — the bug / appear

  2. 500 customers / place orders — the payment step / double-charge

  3. I / draft the public statement — the CEO / call

Drill 2 — 'used to' → the process fix

Rewrite each sentence using 'we used to' + one specific change.

  1. We now run a two-person approval on every price change.

  2. We now reply publicly to every 1-star review within 4 hours.

  3. We now run a post-mortem after every outage.

Bridge to the case → The case will demand three moves: (a) a three-sentence status update DURING the incident, (b) a public statement AFTER it, and (c) a 'used to → now' process fix so it doesn't happen again.