## Answers

B3 Who dunnit?

Step 1 Words

The following are mystery genres:
detective, medical thriller, police. [students own answers].

Step 2 Reading

Topic sentences:

1. = c
2. = h
3. = b
4. = f
5. = g
6. = d
7. = a

Author's main point:
c) Using your brain while you watch TV is a good thing.

1. = beneficial
2. = tested
3. = essential
4. = require
5. = immediately
6. = carefully
7. = not advisable

A possible summary:
This text is about how watching murder mysteries are good for your brain. It’s important to use your brain and
murder mysteries on TV use many parts of it.
The brain also releases chemicals that make the viewer feel good. But you should give in to distractions like
social media.

Step 3 Grammar

Probability | might have / must have
Ability | could have
Obligation and advice | should have

Answer: past participle
Answers Click here for the rewritten sentences.

Step 4 Song

Songtext:

1. = serene
2. = drowsy
3. = careless
4. = restore
5. = game
6. = mattress

1. The woman was also having an affair: adultery.
2. a. murder; b. adultery
3. Students own answers but not really remorseful.
4. Students own answers.